[binutils-gdb] GDB: testsuite: Fix proc return value in gdb.python/py-prettyprint.exp

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=721db7bd56d803bce2257da677c6c48c97a4115f

commit 721db7bd56d803bce2257da677c6c48c97a4115f
Author: Thiago Jung Bauermann <[email protected]>
Date:   Sun Apr 26 01:15:00 2026 -0300

    GDB: testsuite: Fix proc return value in gdb.python/py-prettyprint.exp
    
    The callers of the procedure run_lang_tests expect it to return -1 in
    case of error but in the case where runto_main fails, it will return
    without any value.  Make it return -1 in that case as well.
    
    Found by code inspection.
    
    Approved-By: Tom Tromey <[email protected]>

Diff:
---
 gdb/testsuite/gdb.python/py-prettyprint.exp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gdb/testsuite/gdb.python/py-prettyprint.exp b/gdb/testsuite/gdb.python/py-prettyprint.exp
index ca189a40329..ab31928fa77 100644
--- a/gdb/testsuite/gdb.python/py-prettyprint.exp
+++ b/gdb/testsuite/gdb.python/py-prettyprint.exp
@@ -40,7 +40,7 @@ proc run_lang_tests {exefile lang} {
     gdb_load $exefile
 
     if {![runto_main]} {
-	return
+	return -1
     }
 
     gdb_test_no_output "set print pretty on"