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rc: reset ntrap after parsing line

--- a/sys/src/cmd/rc/exec.c

+++ b/sys/src/cmd/rc/exec.c

@@ -1040,6 +1040,7 @@

 			p->lex = 0;

 		} else

 			--p->pc;	/* re-execute Xrdcmds after codebuf runs */

+		ntrap = 0;	/* avoid double-interrupts during blocked writes */

 		start(codebuf, 2, p->local, p->redir);

 	}

 	lex = 0;

-- 

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