[gcc r14-5891] arm: libgcc: tweak warning from __sync_synchronize

[Richard Earnshaw <rearnsha@gcc.gnu.org>]

https://gcc.gnu.org/g:eecdd96c8d1de244e21212a830e51062b3e444c5

commit r14-5891-geecdd96c8d1de244e21212a830e51062b3e444c5
Author: Richard Earnshaw <rearnsha@arm.com>
Date:   Mon Nov 27 17:59:39 2023 +0000

    arm: libgcc: tweak warning from __sync_synchronize
    
    My previous patch to add an implementation of __sync_syncrhonize with
    a warning trips a testsuite failure in fortran (and possibly other
    languages as well) as the framework expects no blank lines in the
    output, but this warning was generating one.  So remove the newline
    from the end of the message and rely on the one added by the linker
    instead.
    
    Since we're there, remove the trailing period from the message as
    well, since the convention seems to be not to have one.
    
    libgcc/
    
            * config/arm/lib1funcs.S (__sync_synchronize): Adjust warning message.

Diff:
---
 libgcc/config/arm/lib1funcs.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libgcc/config/arm/lib1funcs.S b/libgcc/config/arm/lib1funcs.S
index 78887861616..40e9a7a87fb 100644
--- a/libgcc/config/arm/lib1funcs.S
+++ b/libgcc/config/arm/lib1funcs.S
@@ -2214,7 +2214,7 @@ LSYM(Lchange_\register):
 	.ascii "no effect.  Relink with\n"
 	.ascii "  -specs=sync-{none,dmb,cp15dmb}.specs\n"
 	.ascii "to specify exactly which barrier format to use and avoid "
-	.ascii "this warning.\n\0"
+	.ascii "this warning\0"
 #endif
 #endif
 #endif