[PATCH v1] gas: Fix copy-paste error in struct frag comment

The comments for fr_offset and fr_symbol in struct frag were misleading.
fr_symbol is used to store the symbol associated with the frag,
not for the variable-length tail.
---
Changes in V1:
- Add ", if any".

 gas/frags.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gas/frags.h b/gas/frags.h
index ebb6fa626ac..dded4bb33f1 100644
--- a/gas/frags.h
+++ b/gas/frags.h
@@ -48,7 +48,7 @@ struct frag {
   offsetT fr_var;
   /* For variable-length tail.  */
   offsetT fr_offset;
-  /* For variable-length tail.  */
+  /* Symbol associated with the frag, if any.  */
   symbolS *fr_symbol;
   /* Points to opcode low addr byte, for relaxation.  */
   char *fr_opcode;
-- 
2.34.1