config: add test cases for empty value and no value config variables.

diff --git a/builtin-commit.c b/builtin-commit.c
index c787bed696591f58d1336a701e57414c9d5c8cbf..a43f2019959a950639f013ff534610e228d8c149 100644 (file)
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -743,6 +743,8 @@ static void print_summary(const char *prefix, const unsigned char *sha1)
 int git_commit_config(const char *k, const char *v)
 {
        if (!strcmp(k, "commit.template")) {
+               if (!v)
+                       return config_error_nonbool(v);
                template_file = xstrdup(v);
                return 0;
        }
@@ -929,6 +931,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 
        unlink(git_path("MERGE_HEAD"));
        unlink(git_path("MERGE_MSG"));
+       unlink(git_path("SQUASH_MSG"));
 
        if (commit_index_files())
                die ("Repository has been updated, but unable to write\n"