sh: comment tidying for sh64->sh migration.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/lib64/dbg.c b/arch/sh/lib64/dbg.c
index 97816e0..75825ef 100644
--- a/arch/sh/lib64/dbg.c
+++ b/arch/sh/lib64/dbg.c
@@ -2,7 +2,7 @@
 --
 -- Identity : Linux50 Debug Funcions
 --
--- File     : arch/sh64/lib/dbg.C
+-- File     : arch/sh/lib64/dbg.c
 --
 -- Copyright 2000, 2001 STMicroelectronics Limited.
 -- Copyright 2004 Richard Curnow (evt_debug etc)