Avoid C99 comments, use old-style C comments instead.

This doesn't make the code uglier or harder to read, yet it makes the
code more portable.  This also simplifies checking for other potential
incompatibilities.  "gcc -std=c89 -pedantic" can flag many incompatible
constructs as warnings, but C99 comments will cause it to emit an error.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
diff --git a/convert-objects.c b/convert-objects.c
index 0fabd89..ebea8e4 100644
--- a/convert-objects.c
+++ b/convert-objects.c
@@ -240,14 +240,14 @@
 {
 	char *new = xmalloc(size + 100);
 	unsigned long newlen = 0;
-	
-	// "tree <sha1>\n"
+
+	/* "tree <sha1>\n" */
 	memcpy(new + newlen, buffer, 46);
 	newlen += 46;
 	buffer = (char *) buffer + 46;
 	size -= 46;
 
-	// "parent <sha1>\n"
+	/* "parent <sha1>\n" */
 	while (!memcmp(buffer, "parent ", 7)) {
 		memcpy(new + newlen, buffer, 48);
 		newlen += 48;
@@ -255,12 +255,12 @@
 		size -= 48;
 	}
 
-	// "author xyz <xyz> date"
+	/* "author xyz <xyz> date" */
 	newlen += convert_date_line(new + newlen, &buffer, &size);
-	// "committer xyz <xyz> date"
+	/* "committer xyz <xyz> date" */
 	newlen += convert_date_line(new + newlen, &buffer, &size);
 
-	// Rest
+	/* Rest */
 	memcpy(new + newlen, buffer, size);
 	newlen += size;