[PATCH v2 04/12] t: prepare `git config --unset` calls for `set -e`

[Patrick Steinhardt <ps@pks.im>]

We have a couple of calls to `git config --unset` that ultimately end up
as no-ops as the configuration variables aren't set (anymore) in the
first place. These calls are mostly intended to recover unconditionally
from tests that may have executed only partially, but they'll ultimately
fail during a normal test run.

This hasn't been a problem until now as we aren't running tests with
`set -e`. This is about to change though, so let's silence the case
where we cannot unset the config keys.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
---
 t/t4032-diff-inter-hunk-context.sh | 2 +-
 t/t7508-status.sh                  | 4 ++--
 t/t9138-git-svn-authors-prog.sh    | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/t/t4032-diff-inter-hunk-context.sh b/t/t4032-diff-inter-hunk-context.sh
index bada0cbd32..c98eb6abb2 100755
--- a/t/t4032-diff-inter-hunk-context.sh
+++ b/t/t4032-diff-inter-hunk-context.sh
@@ -17,7 +17,7 @@ f() {
 
 t() {
 	use_config=
-	git config --unset diff.interHunkContext
+	git config --unset diff.interHunkContext || :
 
 	case $# in
 	4) hunks=$4; cmd="diff -U$3";;
diff --git a/t/t7508-status.sh b/t/t7508-status.sh
index a5e21bf8bf..1167b835a4 100755
--- a/t/t7508-status.sh
+++ b/t/t7508-status.sh
@@ -773,8 +773,8 @@ test_expect_success TTY 'status --porcelain ignores color.status' '
 '
 
 # recover unconditionally from color tests
-git config --unset color.status
-git config --unset color.ui
+git config --unset color.status || :
+git config --unset color.ui || :
 
 test_expect_success 'status --porcelain respects -b' '
 
diff --git a/t/t9138-git-svn-authors-prog.sh b/t/t9138-git-svn-authors-prog.sh
index 784ec7fc2d..5bb38cb23a 100755
--- a/t/t9138-git-svn-authors-prog.sh
+++ b/t/t9138-git-svn-authors-prog.sh
@@ -68,8 +68,8 @@ test_expect_success 'authors-file overrode authors-prog' '
 	)
 '
 
-git --git-dir=x/.git config --unset svn.authorsfile
-git --git-dir=x/.git config --unset svn.authorsprog
+git --git-dir=x/.git config --unset svn.authorsfile || :
+git --git-dir=x/.git config --unset svn.authorsprog || :
 
 test_expect_success 'authors-prog imported user without email' '
 	svn mkdir -m gg --username gg-hermit "$svnrepo"/gg &&

-- 
2.54.0.rc2.529.gd9106f7525.dirty