D31876.id94852.diff
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	Index: bin/sh/miscbltin.c
	===================================================================
	--- bin/sh/miscbltin.c
	+++ bin/sh/miscbltin.c
	@@ -231,6 +231,8 @@
	* If there's nothing ready, return an error.
	*/
	if (status <= 0) {
	+ while (*ap != NULL)
	+ setvar(*ap++, "", 0);
	sig = pendingsig;
	return (128 + (sig != 0 ? sig : SIGALRM));
	}
	Index: bin/sh/tests/builtins/Makefile
	===================================================================
	--- bin/sh/tests/builtins/Makefile
	+++ bin/sh/tests/builtins/Makefile
	@@ -141,6 +141,8 @@
	${PACKAGE}FILES+= read7.0
	${PACKAGE}FILES+= read8.0
	${PACKAGE}FILES+= read9.0
	+${PACKAGE}FILES+= read10.0
	+${PACKAGE}FILES+= read11.0
	${PACKAGE}FILES+= return1.0
	${PACKAGE}FILES+= return2.1
	${PACKAGE}FILES+= return3.1
	Index: bin/sh/tests/builtins/read10.0
	===================================================================
	--- /dev/null
	+++ bin/sh/tests/builtins/read10.0
	@@ -0,0 +1,8 @@
	+
	+set -e
	+
	+v=original_value
	+error=0
	+read v < /dev/null \|\| error=$?
	+[ "$error" -eq 1 ]
	+[ -z "$v" ]
	Index: bin/sh/tests/builtins/read11.0
	===================================================================
	--- /dev/null
	+++ bin/sh/tests/builtins/read11.0
	@@ -0,0 +1,12 @@
	+
	+set -e
	+
	+T=`mktemp -u sh-test.XXXXXX`
	+trap 'rm -f "$T"' 0
	+mkfifo "$T"
	+exec 4<>"$T"
	+v=original_value
	+error=0
	+read -t 0 v < "$T" \|\| error=$?
	+[ "$error" -eq 142 ]
	+[ -z "$v" ]