Changed multi-line C comments into another style.

The left side doesn't look unbalanced.

src/ca65/anonname.c

@@ -59,9 +59,9 @@ static const char AnonTag[] = "$anon";
 
 StrBuf* AnonName (StrBuf* Buf, const char* Spec)
 /* Get a name for an anonymous scope, variable or type. Size is the size of
- * the buffer passed to the function, Spec will be used as part of the
- * identifier if given. A pointer to the buffer is returned.
- */
+** the buffer passed to the function, Spec will be used as part of the
+** identifier if given. A pointer to the buffer is returned.
+*/
 {
     static unsigned ACount = 0;
     SB_Printf (Buf, "%s-%s-%04X", AnonTag, Spec, ++ACount);