Skins: Use standard XML declaration

qwertychouskie · qwertychouskie · commit 1bcb41a267d5 · 2019-07-11T19:34:52.000-07:00
Otherwise Thunar thinks they are webpages
diff --git a/data/skins/Coal.stkskin b/data/skins/Coal.stkskin
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
 
 Coal skin is based on Ocean skin
diff --git a/data/skins/Forest.stkskin b/data/skins/Forest.stkskin
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
 
 Forest skin is based on Ocean skin
diff --git a/data/skins/Ocean.stkskin b/data/skins/Ocean.stkskin
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
 
 Ocean skin by Dakal and Marianne Gagnon, released under creative-commons BY-SA 3.0+
diff --git a/data/skins/Peach.stkskin b/data/skins/Peach.stkskin
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
 
 Peach skin by Dakal and Marianne Gagnon, released under creative-commons BY-SA 3.0+
diff --git a/data/skins/Ruby.stkskin b/data/skins/Ruby.stkskin
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
 
 Ruby skin is based on Peach skin

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+<?xml version="1.0" encoding="UTF-8"?>`
`1`	`2`	`<!--`
`2`	`3`
`3`	`4`	`Coal skin is based on Ocean skin`