Remove hard coded leading slash in head_tag.cs for DevSite image_path meta...
Remove hard coded leading slash in head_tag.cs for DevSite image_path meta tag. am: c9ef9fea am: ea99b7d8 am: 065e5e3f am: a7776e5b
am: d0f14a99
Change-Id: Ia1fd4f8d775339ba7a6eb007a1730dfd0fcbcbb0