test/run: clear $E in case it's already set in environment.

R=rsc
CC=golang-dev
https://golang.org/cl/4312054

diff --git a/test/run b/test/run
index 28d0caa0f687a85b87b40f2a6fa1697727aa0e03..a74933f358d4777493c53e67a3bad973ea72dcfb 100755 (executable)
--- a/test/run
+++ b/test/run
@@ -5,6 +5,8 @@
 
 eval $(gomake --no-print-directory -f ../src/Make.inc go-env)
 
+export E=
+
 case X"$GOARCH" in
 Xamd64)
        export A=6