patch 8.2.4962: files show up in git status

Problem:    Files show up in git status.
Solution:   Adjust the list of ignored files.  Clean up more test files.
            (Shane xb Qian, closes #9929)

.gitignore

@@ -8,7 +8,6 @@ src/auto/gui_gtk_gresources.h
 src/auto/os_haiku.rdef
 src/objects/.dirstamp
 src/objects
-src/tags
 src/types.vim
 
 # We do need src/auto/configure.
@@ -62,6 +61,11 @@ src/xxd/xxd.dSYM
 *.pyc
 *.log
 src/po/vim.pot
+src/tags
+/tags
+/GPATH
+/GTAGS
+/GRTAGS
 
 # Generated by "make test"
 src/po/*.ck
@@ -86,7 +90,6 @@ src/message_test
 src/kword_test
 
 # Generated by "make install"
-runtime/doc/tags
 runtime/doc/doctags
 
 # Generated by "make shadow".  The directory names could be anything but we