ash: change "clear ungetc counter on syntax errors" fix to match dash

function                                             old     new   delta
ash_main                                            1203    1210      +7
raise_exception                                       39      26     -13
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 7/-13)              Total: -6 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/shell/ash.c b/shell/ash.c
index aa2a93b..f16d7fb 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -636,8 +636,6 @@
 		abort();
 #endif
 	INT_OFF;
-	/* Prevent this: ";l" -> syntax error, then "s" -> runs "ls" */
-	g_parsefile->unget = 0;
 	exception_type = e;
 	longjmp(exception_handler->loc, 1);
 }
@@ -14161,6 +14159,7 @@
 	/* from input.c: */
 	g_parsefile->left_in_buffer = 0;
 	g_parsefile->left_in_line = 0;      /* clear input buffer */
+	g_parsefile->unget = 0;
 	popallfiles();
 
 	/* from var.c: */