Trivial change to support different SELinux policies for third party apps

Needed to support https://android-review.googlesource.com/80871

Change-Id: Iba569c046135c0e81140faf6296c5da26a243037

seapp_contexts

@@ -13,6 +13,7 @@
 # user=_isolated will match any isolated service UID.
 # All specified input selectors in an entry must match (i.e. logical AND).
 # Matching is case-insensitive.
+#
 # Precedence rules:
 # 	  (1) isSystemServer=true before isSystemServer=false.
 #	  (2) Specified user= string before unspecified user= string.