Merge branch 'ew/pretty-fmt' into next

* ew/pretty-fmt:
  commit: allow --pretty= args to be abbreviated

Conflicts:

	commit.c - adjust to --pretty=email

diff --cc commit.c
index 93b3903ea78fac0b5a40074ec64d0c98bb8cfa94,4a26070c137243bf099cf10415b2910eca230368..84558bac29afd64e295a451ad7baa099237ae045
--- 1/commit.c
--- 2/commit.c
+++ b/commit.c
@@@ -22,25 -22,33 +22,34 @@@ struct sort_nod
  
  const char *commit_type = "commit";
  
+ struct cmt_fmt_map {
+       const char *n;
+       size_t cmp_len;
+       enum cmit_fmt v;
+ } cmt_fmts[] = {
+       { "raw",        1,      CMIT_FMT_RAW },
+       { "medium",     1,      CMIT_FMT_MEDIUM },
+       { "short",      1,      CMIT_FMT_SHORT },
++      { "email",      1,      CMIT_FMT_EMAIL },
+       { "full",       5,      CMIT_FMT_FULL },
+       { "fuller",     5,      CMIT_FMT_FULLER },
+       { "oneline",    1,      CMIT_FMT_ONELINE },
+ };
+ 
  enum cmit_fmt get_commit_format(const char *arg)
  {
-       if (!*arg)
+       int i;
+ 
+       if (!arg || !*arg)
                return CMIT_FMT_DEFAULT;
-       if (!strcmp(arg, "=raw"))
-               return CMIT_FMT_RAW;
-       if (!strcmp(arg, "=medium"))
-               return CMIT_FMT_MEDIUM;
-       if (!strcmp(arg, "=short"))
-               return CMIT_FMT_SHORT;
-       if (!strcmp(arg, "=full"))
-               return CMIT_FMT_FULL;
-       if (!strcmp(arg, "=fuller"))
-               return CMIT_FMT_FULLER;
-       if (!strcmp(arg, "=email"))
-               return CMIT_FMT_EMAIL;
-       if (!strcmp(arg, "=oneline"))
-               return CMIT_FMT_ONELINE;
-       die("invalid --pretty format");
+       if (*arg == '=')
+               arg++;
+       for (i = 0; i < ARRAY_SIZE(cmt_fmts); i++) {
+               if (!strncmp(arg, cmt_fmts[i].n, cmt_fmts[i].cmp_len))
+                       return cmt_fmts[i].v;
+       }
+ 
+       die("invalid --pretty format: %s", arg);
  }
  
  static struct commit *check_commit(struct object *obj,