Bump rlzlib version to get fix for crash.

DEPS

 vars = {
   # Use this googlecode_url variable only if there is an internal mirror for it.
   # If you do not know, use the full path while defining your new deps entry.
   "googlecode_url": "http://%s.googlecode.com/svn",
   "webkit_trunk": "http://svn.webkit.org/repository/webkit/trunk",
   "nacl_trunk": "http://src.chromium.org/native_client/trunk",
   "webkit_revision": "95381",
   "chromium_git": "http://git.chromium.org/git",
   "swig_revision": "69281",
   "nacl_revision": "6708",
@@ skipping 306 matching lines @@
       "/trunk/deps/third_party/nss@101569",
 
     "src/third_party/swig/win":
       "/trunk/deps/third_party/swig/win@" + Var("swig_revision"),
 
     "src/third_party/mingw-w64/mingw/bin":
       (Var("nacl_trunk") + "/src/third_party/mingw-w64/mingw/bin@" +
        Var("nacl_tools_revision")),
 
     "src/rlz":
-      (Var("googlecode_url") % "rlz") + "/trunk@47",
+      (Var("googlecode_url") % "rlz") + "/trunk@48",
 
     # Dependencies used by libjpeg-turbo
     "src/third_party/yasm/binaries":
       "/trunk/deps/third_party/yasm/binaries@74228",
 
     # Binary level profile guided optimizations.  This points to the
     # latest release binaries for the toolchain.
     "src/third_party/syzygy/binaries":
       (Var("googlecode_url") % "sawbuck") + "/trunk/syzygy/binaries@427",
   },
@@ skipping 96 matching lines @@
     # which takes ~20s, but clang speeds up builds by more than 20s.
     "pattern": ".",
     "action": ["python", "src/tools/clang/scripts/update.py", "--mac-only"],
   },
   {
     # A change to a .gyp, .gypi, or to GYP itself should run the generator.
     "pattern": ".",
     "action": ["python", "src/build/gyp_chromium"],
   },
 ]