trac 30010: (typo) change sage_doctest -> sage_docbuild

Author: jhpalmieri

src/sage/doctest/control.py

@@ -697,7 +697,7 @@ def all_files():
             # don't make sense to run outside a build environment
             if have_git:
                 self.files.append(opj(SAGE_SRC, 'sage_setup'))
-                self.files.append(opj(SAGE_SRC, 'sage_doctest'))
+                self.files.append(opj(SAGE_SRC, 'sage_docbuild'))
             self.files.append(SAGE_DOC_SRC)
 
         if self.options.all or (self.options.new and not have_git):