[PATCH] Fix for config file section parsing.

[sean <seanlkml@sympatico.ca>]

Currently, if the target key has a section that matches
the initial substring of another section we mistakenly
believe we've found the correct section.  To avoid this
problem, ensure that the section lengths are identical
before comparison.

Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca>

---

Here's an example of the problem:

$ git repo-config a.b.c d
$ cat .git/config
[a.b]
        c = d
$ git repo-config a.x y
$ cat .git/config
[a.b]
        c = d
        x = y


 config.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

f956fd1a6b1d3c82d9bc735427b58ec41d9e5dd1
diff --git a/config.c b/config.c
index 4e1f0c2..a3e14d7 100644
--- a/config.c
+++ b/config.c
@@ -335,8 +335,9 @@ static int store_aux(const char* key, co
 			store.offset[store.seen] = ftell(config_file);
 			store.state = KEY_SEEN;
 			store.seen++;
-		} else if(!strncmp(key, store.key, store.baselen))
-			store.state = SECTION_SEEN;
+		} else if (strrchr(key, '.') - key == store.baselen &&
+			      !strncmp(key, store.key, store.baselen))
+					store.state = SECTION_SEEN;
 	}
 	return 0;
 }
-- 
1.3.2.g2fb9