Remove tabs from HTML files

From https://google.github.io/styleguide/htmlcssguide.html
"Indentation
Indent by 2 spaces at a time.

Don't use tabs or mix tabs and spaces for indentation."

Tested: Manual regression testing on a Witherspoon.
Change-Id: Ief7137dabc869b73b73f9947337fbb0abb5ca497
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/app/common/directives/log-search-control.html b/app/common/directives/log-search-control.html
index 5d2246c..6d3dbfd 100644
--- a/app/common/directives/log-search-control.html
+++ b/app/common/directives/log-search-control.html
@@ -3,7 +3,7 @@
     <label for="content__search-input">Event Log Search</label>
     <input id="content__search-input" type="text" ng-model="customSearch" ng-keydown="doSearchOnEnter($event)"/>
     <div class="search-submit__wrapper">
-		<button class="clear-input" ng-click="clear()">&#10005;</button>
+    <button class="clear-input" ng-click="clear()">&#10005;</button>
         <input id="content__search-submit" type="submit" class="btn btn-primary content__search-submit" value="Filter" ng-click="doSearchOnClick()"/>
     </div>
 </div>
\ No newline at end of file