1. We should quote the argument
 2. We don't need two redirections
 3. A safeguard for arguments (-a) would be good

Suggested-by: René Scharfe <redacted>
Signed-off-by: Felipe Contreras <redacted>
---
 contrib/completion/git-completion.bash | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 869c73ee2c..1150d4bf44 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash

@@ -3359,7 +3359,7 @@ __git_support_parseopt_helper () {
 }
 
 __git_have_func () {
-	declare -f $1 >/dev/null 2>/dev/null
+	declare -f -- "$1" >/dev/null 2>&1
 }
 
 __git_complete_command () {

-- 
2.30.0