Adding stderr regex catch for iosxr commit failures. Adding error han…

…dling after executing commit command. (ansible#26462)

lib/ansible/module_utils/iosxr.py

@@ -137,6 +137,9 @@ def load_config(module, commands, warnings, commit=False, replace=False, comment
     else:
         cmd = 'abort'
         diff = None
-    exec_command(module, cmd)
+    rc, out, err = exec_command(module, cmd)
+    if rc != 0:
+        exec_command(module, 'abort')
+        module.fail_json(msg=err, commands=commands, rc=rc)
 
     return to_text(diff, errors='surrogate_or_strict')

lib/ansible/plugins/terminal/iosxr.py

@@ -42,6 +42,7 @@ class TerminalModule(TerminalBase):
         re.compile(br"connection timed out", re.I),
         re.compile(br"[^\r\n]+ not found", re.I),
         re.compile(br"'[^']' +returned error code: ?\d+"),
+        re.compile(br"Failed to commit", re.I)
     ]
 
     def on_open_shell(self):