Merge pull request #189 from rubygems/dependabot/bundler/rexml-3.2.8

Bump rexml from 3.2.6 to 3.2.8

Author: hsbt

Gemfile.lock

@@ -68,7 +68,8 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rouge (4.2.1)
     safe_yaml (1.0.5)
     sass (3.7.4)
@@ -79,6 +80,7 @@ GEM
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
+    strscan (3.1.0)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     unicode-display_width (2.5.0)