[gdb/testsuite] Fix gdb.server/no-thread-db.exp with local-remote-host.exp

With test-case gdb.server/no-thread-db.exp and host board local-remote-host.exp
with a tentative fix for PR29697 I run into:
...
(gdb) print foo^M
Cannot find thread-local storage for Thread 29613.29613, executable file \
  $HOME/no-thread-db:^M
Remote target failed to process qGetTLSAddr request^M
(gdb) FAIL: gdb.server/no-thread-db.exp: print foo
...

The regexp in the test-case expects the full $binfile pathname, but we have
instead $HOME/no-thread-db.

Fix this by making the regexp less strict.

Tested on x86_64-linux.

1 files changed, 2 insertions, 1 deletions

diff --git a/gdb/testsuite/gdb.server/no-thread-db.exp b/gdb/testsuite/gdb.server/no-thread-db.exp
index db61c61..16c1a0d 100644
--- a/gdb/testsuite/gdb.server/no-thread-db.exp
+++ b/gdb/testsuite/gdb.server/no-thread-db.exp
@@ -59,5 +59,6 @@ gdb_breakpoint ${srcfile}:[gdb_get_line_number "after tls assignment"]
 gdb_continue_to_breakpoint "after tls assignment"
 
 # Printing a tls variable should fail gracefully without a libthread_db.
+set re_exec "\[^\r\n\]*[file tail $binfile]"
 gdb_test "print foo" \
-    "Cannot find thread-local storage for Thread \[^,\]+, executable file ${binfile}:\[\r\n\]+Remote target failed to process qGetTLSAddr request"
+    "Cannot find thread-local storage for Thread \[^,\]+, executable file $re_exec:\[\r\n\]+Remote target failed to process qGetTLSAddr request"