revision.c "..B" syntax: constness fix

The earlier change to make "..B" to mean "HEAD..B" (aka ^HEAD B)
has constness gotcha GCC complains.  Fix it.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/revision.c b/revision.c
index 2cda7e0..abc8745 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -641,14 +641,13 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
                dotdot = strstr(arg, "..");
                if (dotdot) {
                        unsigned char from_sha1[20];
-                       char *next = dotdot + 2;
-                       char *this = arg;
-                       static const char HEAD[] = "HEAD";
+                       const char *next = dotdot + 2;
+                       const char *this = arg;
                        *dotdot = 0;
                        if (!*next)
-                               next = HEAD;
+                               next = "HEAD";
                        if (dotdot == arg)
-                               this = HEAD;
+                               this = "HEAD";
                        if (!get_sha1(this, from_sha1) &&
                            !get_sha1(next, sha1)) {
                                struct commit *exclude;