contrib/examples/git-resolve.sh: avoid "test <cond> -a/-o <cond>"

The construct is error-prone; "test" being built-in in most modern
shells, the reason to avoid "test <cond> && test <cond>" spawning
one extra process by using a single "test <cond> -a <cond>" no
longer exists.

Signed-off-by: Elia Pinto <gitter.spiros@gmail.com>
Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

contrib/examples/git-resolve.sh

@@ -76,7 +76,7 @@ case "$common" in
 			2>/dev/null || continue
 		# Count the paths that are unmerged.
 		cnt=$(GIT_INDEX_FILE=$G git ls-files --unmerged | wc -l)
-		if test $best_cnt -le 0 -o $cnt -le $best_cnt
+		if test $best_cnt -le 0 || test $cnt -le $best_cnt
 		then
 			best=$c
 			best_cnt=$cnt