syscall: fix permissions on mksysnum_nacl.sh

TBR=adg
CC=golang-dev
https://golang.org/cl/2208049

diff --git a/src/pkg/syscall/mksysnum_nacl.sh b/src/pkg/syscall/mksysnum_nacl.sh
old mode 100644 (file)
new mode 100755 (executable)