submodule-config: use explicit empty string instead of strbuf in config_from()

Use a string constant instead of an empty strbuf to shorten the code
and make it easier to read.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/submodule-config.c b/submodule-config.c
index 7f67ec0c6a826cca0ba80ce5990d5f0f3a0dcaa6..1210b267ddf9cd8e8ed4d9c1ce534abe2b3076ad 100644 (file)
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -375,7 +375,6 @@ static const struct submodule *config_from(struct submodule_cache *cache,
                const unsigned char *commit_sha1, const char *key,
                enum lookup_type lookup_type)
 {
-       struct strbuf rev = STRBUF_INIT;
        unsigned long config_size;
        char *config;
        unsigned char sha1[20];
@@ -426,7 +425,7 @@ static const struct submodule *config_from(struct submodule_cache *cache,
        parameter.commit_sha1 = commit_sha1;
        parameter.gitmodules_sha1 = sha1;
        parameter.overwrite = 0;
-       git_config_from_mem(parse_config, "submodule-blob", rev.buf,
+       git_config_from_mem(parse_config, "submodule-blob", "",
                        config, config_size, &parameter);
        free(config);