Merge pull request #220 from apache/dependabot/bundler/rexml-3.3.9

Bump rexml from 3.3.2 to 3.3.9

Author: leerho

Gemfile.lock

@@ -224,8 +224,7 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.10.0)
       ffi (~> 1.0)
-    rexml (3.3.2)
-      strscan
+    rexml (3.3.9)
     rouge (3.26.0)
     ruby_dep (1.5.0)
     rubyzip (2.0.0)
@@ -238,7 +237,6 @@ GEM
     sawyer (0.8.2)
       addressable (>= 2.3.5)
       faraday (> 0.8, < 2.0)
-    strscan (3.1.0)
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     typhoeus (1.3.1)