(unitialized_vars_warning, setjmp_args_warning): Reword warning to be

less ambiguous.

From-SVN: r7005

gcc/function.c

@@ -4078,13 +4078,13 @@ uninitialized_vars_warning (block)
 	  && GET_CODE (DECL_RTL (decl)) == REG
 	  && regno_uninitialized (REGNO (DECL_RTL (decl))))
 	warning_with_decl (decl,
-			   "`%s' may be used uninitialized in this function");
+			   "`%s' might be used uninitialized in this function");
       if (TREE_CODE (decl) == VAR_DECL
 	  && DECL_RTL (decl) != 0
 	  && GET_CODE (DECL_RTL (decl)) == REG
 	  && regno_clobbered_at_setjmp (REGNO (DECL_RTL (decl))))
 	warning_with_decl (decl,
-			   "variable `%s' may be clobbered by `longjmp' or `vfork'");
+			   "variable `%s' might be clobbered by `longjmp' or `vfork'");
     }
   for (sub = BLOCK_SUBBLOCKS (block); sub; sub = TREE_CHAIN (sub))
     uninitialized_vars_warning (sub);
@@ -4103,7 +4103,7 @@ setjmp_args_warning (block)
     if (DECL_RTL (decl) != 0
 	&& GET_CODE (DECL_RTL (decl)) == REG
 	&& regno_clobbered_at_setjmp (REGNO (DECL_RTL (decl))))
-      warning_with_decl (decl, "argument `%s' may be clobbered by `longjmp' or `vfork'");
+      warning_with_decl (decl, "argument `%s' might be clobbered by `longjmp' or `vfork'");
 }
 
 /* If this function call setjmp, put all vars into the stack