gdb/testsuite: fix gdb.trace/signal.exp on x86

Patch

  202be274a41a ("opcodes/i386: remove trailing whitespace from insns with zero operands")

causes this regression:

  FAIL: gdb.trace/signal.exp: find syscall insn in kill

It's because the test still expects to match a whitespace after the
instruction, which the patch mentioned above removed.  Remove the
whitespaces for the regexp.

Change-Id: Ie194273cc942bfd91332d4035f6eec55b7d3a428

diff --git a/gdb/testsuite/gdb.trace/signal.exp b/gdb/testsuite/gdb.trace/signal.exp
index e5b608974869fbc4bcdf67745d6d24f872f3bd7d..782abeb69d388f533903003604ad9de238895d58 100644 (file)
--- a/gdb/testsuite/gdb.trace/signal.exp
+++ b/gdb/testsuite/gdb.trace/signal.exp
@@ -55,7 +55,7 @@ set syscall_insn ""
 # Define the syscall instruction for each target.
 
 if { [istarget "i\[34567\]86-*-linux*"] || [istarget "x86_64-*-linux*"] } {
-    set syscall_insn "\[ \t\](int|syscall|sysenter)\[ \t\]"
+    set syscall_insn "\[ \t\](int|syscall|sysenter)"
 } elseif { [istarget "aarch64*-*-linux*"] || [istarget "arm*-*-linux*"] } {
     set syscall_insn "\[ \t\](swi|svc)\[ \t\]"
 } else {