[rfc] Clarify shared library warning

[Daniel Jacobowitz <drow@false.org>]

This function, added recently by Alex, just saved me hours.  I was looking
back at an old bug report, and some inexplicable symbols that seemed to
start in the middle of functions.  And right there was a message from GDB,
not present last time I looked at the testcase:

warning: .dynamic section for "/lib/libc.so.6" is not at the expected
address

The tarball that went with the core dump had the wrong libraries in it.
No wonder it didn't work.

But this warning isn't very self-explanatory.  I was thinking something
like the below, in addition.  How does this sound?

warning: .dynamic section for "/lib/libc.so.6" is not at the expected
address
warning: the wrong version of the shared library may have been found

-- 
Daniel Jacobowitz
CodeSourcery

2006-10-10  Daniel Jacobowitz  <dan@codesourcery.com>

	* solib-svr4.c (LM_ADDR_CHECK): Suggest shared library mismatch.

Index: solib-svr4.c
===================================================================
RCS file: /cvs/src/src/gdb/solib-svr4.c,v
retrieving revision 1.58
diff -u -p -r1.58 solib-svr4.c
--- solib-svr4.c	18 May 2006 20:38:56 -0000	1.58
+++ solib-svr4.c	10 Oct 2006 14:47:59 -0000
@@ -221,6 +221,11 @@ LM_ADDR_CHECK (struct so_list *so, bfd *
 	      warning (_("difference appears to be caused by prelink, "
 			 "adjusting expectations"));
 	    }
+	  else
+	    {
+	      warning (_("the wrong version of the shared library may "
+			 "have been found"));
+	    }
 	}
 
     set_addr: