container/path: fhs path constants

This increases readability since this can help disambiguate absolute paths from similarly named path segments.

Signed-off-by: Ophestra <cat@gensokyo.uk>

hst/template_test.go

@@ -98,7 +98,7 @@ func TestTemplate(t *testing.T) {
 		"device": true,
 		"filesystem": [
 			{
-				"dst": "/tmp",
+				"dst": "/tmp/",
 				"src": "tmpfs",
 				"write": true
 			},
@@ -133,7 +133,7 @@ func TestTemplate(t *testing.T) {
 		],
 		"auto_root": "/var/lib/hakurei/base/org.debian",
 		"root_flags": 2,
-		"etc": "/etc",
+		"etc": "/etc/",
 		"auto_etc": true
 	}
 }`