Reduce whitespace liquid outputs. (#24470)

_includes/docs-sidebar.html

@@ -36,7 +36,7 @@
               {{ doc.title }}
             </a>
 
-            {% comment %}
+            {%- comment -%}
             {% unless doc.sections == nil %}
               <ul class="nav">
                 {% for section in doc.sections %}
@@ -48,7 +48,7 @@
                 {% endfor %}
               </ul>
             {% endunless %}
-            {% endcomment %}
+            {%- endcomment -%}
           </li>
         {%- endfor -%}
       </ul>

_includes/header.html

@@ -12,9 +12,9 @@
 
 <!-- Bootstrap core CSS -->
 {% if site.github %}
-  <link href="{{ site.baseurl }}/dist/css/bootstrap.min.css" rel="stylesheet">
+<link href="{{ site.baseurl }}/dist/css/bootstrap.min.css" rel="stylesheet">
 {% else %}
-  <link href="{{ site.baseurl }}/dist/css/bootstrap.css" rel="stylesheet">
+<link href="{{ site.baseurl }}/dist/css/bootstrap.css" rel="stylesheet">
 {% endif %}
 
 <!-- Documentation extras -->

_includes/scripts.html

@@ -3,25 +3,25 @@
 
 <script src="{{ site.baseurl }}/assets/js/vendor/popper.min.js"></script>
 
-{% if site.github %}
+{%- if site.github -%}
   <script src="{{ site.baseurl }}/dist/js/bootstrap.min.js"></script>
-{% else %}
+{%- else -%}
   <script src="{{ site.baseurl }}/dist/js/bootstrap.js"></script>
-{% endif %}
+{%- endif -%}
 
-{% if site.github %}
+{%- if site.github -%}
   <script src="{{ site.baseurl }}/assets/js/docs.min.js"></script>
-{% else %}
+{%- else -%}
   <script src="{{ site.baseurl }}/assets/js/vendor/anchor.min.js"></script>
   <script src="{{ site.baseurl }}/assets/js/vendor/clipboard.min.js"></script>
   <script src="{{ site.baseurl }}/assets/js/vendor/holder.min.js"></script>
   <script src="{{ site.baseurl }}/assets/js/src/application.js"></script>
   <script src="{{ site.baseurl }}/assets/js/src/pwa.js"></script>
-{% endif %}
+{%- endif -%}
 
 <script src="{{ site.baseurl }}/assets/js/ie-emulation-modes-warning.js"></script>
 
-{% if page.layout == "docs" %}
+{%- if page.layout == "docs" -%}
 <script src="https://cdn.jsdelivr.net/docsearch.js/2/docsearch.min.js"></script>
 <script>
   docsearch({
@@ -43,7 +43,7 @@
     debug: false // Set debug to true if you want to inspect the dropdown
   });
 </script>
-{% endif %}
+{%- endif -%}
 
 <script>
   Holder.addTheme('gray', {