make default settings for bash more reliable

see http://redsymbol.net/articles/unofficial-bash-strict-mode/ for explanation
why this might be useful.

UltiSnips/sh.snippets

@@ -33,6 +33,10 @@ snippet !env "#!/usr/bin/env (!env)"
 `!p snip.rv = '#!/usr/bin/env ' + getShell() + "\n\n" `
 endsnippet
 
+snippet sbash "safe bash options"
+`!p snip.rv = '#!/usr/bin/env bash' +  "\nset -euo pipefail\nIFS=$'\n\t'" + "\n\n" `
+endsnippet
+
 snippet temp "Tempfile"
 ${1:TMPFILE}="$(mktemp -t ${2:`!p
 snip.rv = re.sub(r'[^a-zA-Z]', '_', snip.fn) or "untitled"

snippets/sh.snippets

@@ -5,6 +5,11 @@ snippet #!
 snippet bash
 	#!/usr/bin/env bash
 
+snippet sbash
+	#!/usr/bin/env bash
+	set -euo pipefail
+	IFS=$'\n\t'
+
 snippet if
 	if [[ ${1:condition} ]]; then
 		${0:#statements}