fix SC2148 (missing shebang) and make executable

cdist/conf/explorer/disks

@@ -1,2 +1,3 @@
+#!/bin/sh -e
 cd /dev
 echo sd? hd? vd?

cdist/conf/explorer/is-freebsd-jail

@@ -1 +1,2 @@
+#!/bin/sh -e
 sysctl -n security.jail.jailed 2>/dev/null | grep "1" || true

cdist/conf/explorer/kernel_name

@@ -1 +1,2 @@
+#!/bin/sh -e
 uname -s

cdist/conf/type/__daemontools_service/explorer/svc

@@ -1 +1,2 @@
+#!/bin/sh -e
 command -v svc || true

cdist/conf/type/__go_get/explorer/go-executable

@@ -1,3 +1,4 @@
+#!/bin/sh -e
 [ -f /etc/environment ] && . /etc/environment
 [ -f /etc/profile     ] && . /etc/profile
 go version 2>/dev/null || true