[PATCH v4 4/5] completion: avoid trailing space for --exec-path

[Felipe Contreras <felipe.contreras@gmail.com>]

From: Jonathan Nieder <jrnieder@gmail.com>

--exec-path looks to the completion script like an unambiguous
successful completion, but it is wrong; the user could be trying to
do

	git --exec-path; # print name of helper directory

or

	git --exec-path=/path/to/alternative/helper/dir <subcommand>

so the most helpful thing to do is to leave out the trailing space and
leave it to the operator to type an equal sign or carriage return
according to the situation.

Cc: Andreas Schwab <schwab@linux-m68k.org>
Reported-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
[added tests]
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
---
 contrib/completion/git-completion.bash |    1 +
 t/t9902-completion.sh                  |    7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index b837704..6486a09 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -2639,6 +2639,7 @@ _git ()
 			--bare
 			--version
 			--exec-path
+			--exec-path=
 			--html-path
 			--info-path
 			--work-tree=
diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index f24c968..dfef809 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -94,6 +94,7 @@ test_expect_success 'double dash "git" itself' '
 	--bare Z
 	--version Z
 	--exec-path Z
+	--exec-path=
 	--html-path Z
 	--info-path Z
 	--work-tree=
@@ -122,7 +123,11 @@ test_expect_success 'double dash "git checkout"' '
 test_expect_success 'general options' '
 	test_completion "git --ver" "--version " &&
 	test_completion "git --hel" "--help " &&
-	test_completion "git --exe" "--exec-path " &&
+	sed -e "s/Z$//" >expected <<-\EOF &&
+	--exec-path Z
+	--exec-path=
+	EOF
+	test_completion "git --exe" &&
 	test_completion "git --htm" "--html-path " &&
 	test_completion "git --pag" "--paginate " &&
 	test_completion "git --no-p" "--no-pager " &&
-- 
1.7.10.1.g1f19b8.dirty