Fix trac in doc

src/doc/en/developer/packaging.rst

@@ -308,7 +308,7 @@ Likewise for :envvar:`CXXFLAGS`, :envvar:`FCFLAGS`, and :envvar:`F77FLAGS`.
 
     Prior to Sage 8.1 the shebang line was included, and the scripts were
     marked executable.  However, this is no longer the case as of
-    :trac:`23179`.  Now the scripts in the source tree are deliberately
+    :issue:`23179`.  Now the scripts in the source tree are deliberately
     written not to be directly executed, and are only made into executable
     scripts when they are copied to the package's build directory.
 
@@ -491,7 +491,7 @@ The following are also available, but rarely used.
   platforms.)  Check shared libraries loaded by ``EXECUTABLE`` (may be a
   program or another library) for a library starting with ``SONAME``, and
   if found appends ``SONAME`` to the ``LD_PRELOAD`` environment variable.
-  See :trac:`24885`.
+  See :issue:`24885`.
 
 
 .. _spkg-configure.m4:
@@ -642,7 +642,7 @@ constraints based on their experience and tests.  When a package
 update is made in order to pick up a critical bug fix from a newer
 version, then the lower bound should be adjusted.
 Setting upper bounds to guard against incompatible future changes is
-a complex topic; see :trac:`33520`.
+a complex topic; see :issue:`33520`.
 
 
 .. _section-spkg-SPKG-txt:

src/doc/en/developer/packaging_sage_library.rst

@@ -265,7 +265,7 @@ that are imposed by the build-time dependencies.
 
 We can define some meaningful small distributions that just consist of
 a single or a few Cython modules. For example, **sagemath-tdlib**
-(:trac:`29864`) would just package the single
+(:issue:`29864`) would just package the single
 Cython module that must be linked with ``tdlib``,
 :mod:`sage.graphs.graph_decompositions.tdlib`. Starting with the Sage
 9.6 development cycle, as soon as namespace packages are activated, we
@@ -701,7 +701,7 @@ The whole ``.tox`` directory can be safely deleted at any time.
 
 We can do the same with other distributions, for example the large
 distribution **sagemath-standard-no-symbolics**
-(from :trac:`35095`), which is intended to provide
+(from :issue:`35095`), which is intended to provide
 everything that is currently in the standard Sage library, i.e.,
 without depending on optional packages, but without the packages
 :mod:`sage.symbolic`, :mod:`sage.calculus`, etc.
@@ -713,7 +713,7 @@ Again we can run the test with ``tox`` in a separate virtual environment::
 Some small distributions, for example the ones providing the two
 lowest levels, `sagemath-objects <https://pypi.org/project/sagemath-objects/>`_
 and `sagemath-categories <https://pypi.org/project/sagemath-categories/>`_
-(from :trac:`29865`), can be installed and tested
+(from :issue:`29865`), can be installed and tested
 without relying on the wheels from the Sage build::
 
   $ ./bootstrap && ./sage -sh -c '(cd pkgs/sagemath-objects && SAGE_NUM_THREADS=16 tox -v -v -v -e sagepython)'

src/doc/en/installation/source.rst

@@ -170,7 +170,7 @@ animations, Sage needs to use one of the packages :ref:`FFmpeg
    .. literalinclude:: void-recommended.txt
 
 In addition to these, if you don't want Sage to build optional packages that might
-be available from your OS, cf. the growing list of such packages on :trac:`27330`,
+be available from your OS, cf. the growing list of such packages on :issue:`27330`,
 install:
 
 .. tab:: Debian/Ubuntu
@@ -1016,7 +1016,7 @@ Environment variables dealing with specific Sage packages
 .. envvar:: OPENBLAS_CONFIGURE
 
   Adds additional configuration flags for
-  the OpenBLAS package that gets added to the ``make`` command. (see :trac:`23272`)
+  the OpenBLAS package that gets added to the ``make`` command. (see :issue:`23272`)
 
 .. envvar:: PARI_CONFIGURE
 

src/doc/en/prep/Quickstarts/Statistics-and-Distributions.rst

@@ -38,7 +38,7 @@ harmonic mean::
     2.5531914893617023
 
 We do not recommend to use Python's built in ``statistics`` module with Sage.
-It has a known incompatibility with number types defined in Sage, see :trac:`28234`.
+It has a known incompatibility with number types defined in Sage, see :issue:`28234`.
 
 
 Distributions

src/doc/en/thematic_tutorials/coercion_and_categories.rst

@@ -723,7 +723,7 @@ A first note on performance
 ---------------------------
 
 The category framework is sometimes blamed for speed regressions, as in
-:trac:`9138` and :trac:`11900`. But if the category framework is *used
+:issue:`9138` and :issue:`11900`. But if the category framework is *used
 properly*, then it is fast. For illustration, we determine the time needed to
 access an attribute inherited from the element class. First, we consider an
 element that uses the class that we implemented above, but does not use the
@@ -1427,7 +1427,7 @@ Being able to do arithmetics involving elements of different parents, with the
 automatic creation of a pushout to contain the result, is certainly
 convenient\---but one should not rely on it, if speed matters. Simply the
 conversion of elements into different parents takes time. Moreover, by
-:trac:`14058`, the pushout may be subject to Python's cyclic garbage
+:issue:`14058`, the pushout may be subject to Python's cyclic garbage
 collection. Hence, if one does not keep a strong reference to it, the same
 parent may be created repeatedly, which is a waste of time. In the following
 example, we illustrate the slow\--down resulting from blindly relying on

src/doc/en/thematic_tutorials/explicit_methods_in_number_theory/nf_introduction.rst

@@ -310,7 +310,7 @@ root is :math:`x^6 + 10x^3 - 2x^2 + 25`.
 
 .. warning::
 
-   The following tests are currently broken until :trac:`5338` is
+   The following tests are currently broken until :issue:`5338` is
    fixed.
 
 .. skip

src/doc/en/thematic_tutorials/lie/weyl_groups.rst

@@ -122,7 +122,7 @@ and whose values are the roots, you may use the inverse family::
 
 .. NOTE::
 
-    The behaviour of this function was changed in :trac:`20027`.
+    The behaviour of this function was changed in :issue:`20027`.
 
 The Weyl group is implemented as a GAP matrix group. You therefore can
 display its character table as follows::

src/doc/en/thematic_tutorials/linear_programming.rst

@@ -455,7 +455,7 @@ following libraries are currently supported:
 * `CPLEX
   <https://www.ibm.com/products/ilog-cplex-optimization-studio/>`_:
   Proprietary, but available for free for researchers and students through
-  IBM's Academic Initiative.  Since :trac:`27790`, only versions 12.8 and
+  IBM's Academic Initiative.  Since :issue:`27790`, only versions 12.8 and
   above are supported.
 
   Install CPLEX according to the instructions on the

src/doc/en/thematic_tutorials/vector_calculus/vector_calc_advanced.rst

@@ -39,7 +39,7 @@ manifold endowed with a positive definite metric tensor::
     Riemannian metric g on the Euclidean space E^3
 
 Actually ``RR`` is used here as a proxy for the real field (this should be
-replaced in the future, see the discussion at :trac:`24456`) and the 53 bits of precision play
+replaced in the future, see the discussion at :issue:`24456`) and the 53 bits of precision play
 of course no role for the symbolic computations.
 
 Let us introduce spherical and cylindrical coordinates on

src/doc/en/thematic_tutorials/vector_calculus/vector_calc_plane.rst

@@ -500,7 +500,7 @@ manifold endowed with a positive definite metric tensor::
 
 Actually ``RR`` is used here as a proxy for the real field (this should
 be replaced in the future, see the discussion at
-:trac:`24456`) and the 53 bits of
+:issue:`24456`) and the 53 bits of
 precision play of course no role for the symbolic computations.
 
 The user atlas of `\mathbb{E}^2` has two charts::