Fix tar command for variants which require -j or -z

Signed-off-by: Stefan Weil <[email protected]>

unittest/Makefile.am

@@ -527,11 +527,11 @@ $(TESTING_DIR)/Arial_Bold_Italic.ttf:
 
 $(TESTING_DIR)/DejaVuSans-ExtraLight.ttf:
 	curl -sSL http://sourceforge.net/projects/dejavu/files/dejavu/2.37/dejavu-fonts-ttf-2.37.tar.bz2 | \
-	tar -xO dejavu-fonts-ttf-2.37/ttf/DejaVuSans-ExtraLight.ttf >$@
+	tar -xjO dejavu-fonts-ttf-2.37/ttf/DejaVuSans-ExtraLight.ttf >$@
 
 $(TESTING_DIR)/Lohit-Hindi.ttf:
 	curl -sSL https://releases.pagure.org/lohit/lohit-hindi-ttf-2.4.3.tar.gz | \
-	tar -xO lohit-hindi-ttf-2.4.3/Lohit-Hindi.ttf >$@
+	tar -xzO lohit-hindi-ttf-2.4.3/Lohit-Hindi.ttf >$@
 
 $(TESTING_DIR)/Times_New_Roman.ttf:
 	curl -sSL -o Times.exe https://sourceforge.net/projects/corefonts/files/the%20fonts/final/times32.exe/download