Remove trailing whitespace and tabs from RSS templates

The rss templates had some tab characters mixed in with the spaces.
Additionally there would end up being trailing whitespace in output
rss feeds, which looks red in git diff.

tpl/tplimpl/embedded/templates/_default/rss.xml

@@ -22,9 +22,9 @@
     <webMaster>{{.}}{{ with $.Site.Author.name }} ({{.}}){{end}}</webMaster>{{end}}{{ with .Site.Copyright }}
     <copyright>{{.}}</copyright>{{end}}{{ if not .Date.IsZero }}
     <lastBuildDate>{{ .Date.Format "Mon, 02 Jan 2006 15:04:05 -0700" | safeHTML }}</lastBuildDate>{{ end }}
-    {{ with .OutputFormats.Get "RSS" }}
-	{{ printf "<atom:link href=%q rel=\"self\" type=%q />" .Permalink .MediaType | safeHTML }}
-    {{ end }}
+    {{- with .OutputFormats.Get "RSS" -}}
+    {{ printf "<atom:link href=%q rel=\"self\" type=%q />" .Permalink .MediaType | safeHTML }}
+    {{- end -}}
     {{ range $pages }}
     <item>
       <title>{{ .Title }}</title>
@@ -36,4 +36,4 @@
     </item>
     {{ end }}
   </channel>
-</rss>
+</rss>

tpl/tplimpl/embedded/templates/_default/sitemap.xml

@@ -19,4 +19,4 @@
                 />{{ end }}
   </url>
   {{ end }}
-</urlset>
+</urlset>

tpl/tplimpl/embedded/templates/_default/sitemapindex.xml

@@ -1,11 +1,11 @@
 {{ printf "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>" | safeHTML }}
 <sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
-	{{ range . }}
-	<sitemap>
-	   	<loc>{{ .SitemapAbsURL }}</loc>
-		{{ if not .LastChange.IsZero }}
-	   	<lastmod>{{ .LastChange.Format "2006-01-02T15:04:05-07:00" | safeHTML }}</lastmod>
-		{{ end }}
-	</sitemap>
-	{{ end }}
+  {{ range . }}
+  <sitemap>
+    <loc>{{ .SitemapAbsURL }}</loc>
+    {{ if not .LastChange.IsZero }}
+      <lastmod>{{ .LastChange.Format "2006-01-02T15:04:05-07:00" | safeHTML }}</lastmod>
+    {{ end }}
+  </sitemap>
+  {{ end }}
 </sitemapindex>