Typo

Author: arnaud-lb

Zend/zend_compile.c

@@ -6915,7 +6915,7 @@ static zend_ast *zend_partial_apply(zend_ast *callable_ast, zend_ast *pipe_arg)
 			if (first_placeholder == NULL) {
 				first_placeholder = arg;
 			} else {
-				/* A PFA with multiple placeholders is unexpected in is this
+				/* A PFA with multiple placeholders is unexpected in this
 				 * context, and will usually error due to a missing argument,
 				 * so we don't optimize those. */
 				return NULL;