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-rw-r--r--modules/field/field.test2
1 files changed, 1 insertions, 1 deletions
diff --git a/modules/field/field.test b/modules/field/field.test
index af9eb4b72..7030b9543 100644
--- a/modules/field/field.test
+++ b/modules/field/field.test
@@ -989,7 +989,7 @@ class FieldTestCase extends DrupalWebTestCase {
}
// Check that invalid field names are rejected.
- $field_definition['field_name'] += '_#';
+ $field_definition['field_name'] .= '_#';
try {
field_create_field($field_definition);
$this->fail(t('Cannot create a field with an invalid name.'));