verify_dotfile: mention case-insensitivity in comment

We're more restrictive than we need to be in matching ".GIT"
on case-sensitive filesystems; let's make a note that this
is intentional.

Signed-off-by: Jeff King <peff@peff.net>

diff --git a/read-cache.c b/read-cache.c
index 5c5dfc629d6e2c25b8cbcd36d28448609ecd9f91..333e0c542967814fcb3e71fd4cec973548b4f567 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -810,7 +810,10 @@ static int verify_dotfile(const char *rest)
 
        switch (*rest) {
        /*
-        * ".git" followed by NUL or slash is bad.
+        * ".git" followed by NUL or slash is bad. Note that we match
+        * case-insensitively here, even if ignore_case is not set.
+        * This outlaws ".GIT" everywhere out of an abundance of caution,
+        * since there's really no good reason to allow it.
         */
        case 'g':
        case 'G':