pack-bitmap: fix typo

Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/pack-bitmap.c b/pack-bitmap.c
index 91e4101..40cbeab 100644
--- a/pack-bitmap.c
+++ b/pack-bitmap.c
@@ -60,7 +60,7 @@
 	struct ewah_bitmap *blobs;
 	struct ewah_bitmap *tags;
 
-	/* Map from SHA1 -> `stored_bitmap` for all the bitmapped comits */
+	/* Map from SHA1 -> `stored_bitmap` for all the bitmapped commits */
 	khash_sha1 *bitmaps;
 
 	/* Number of bitmapped commits */