Fix typo in option parsing.

Change-Id: I3fd7ad6e445babde0677179f3b49f76de3f6894f
diff --git a/runtime/parsed_options.cc b/runtime/parsed_options.cc
index 6d53ba1..f81c25f 100644
--- a/runtime/parsed_options.cc
+++ b/runtime/parsed_options.cc
@@ -534,7 +534,7 @@
     } else if (option == "-Xprofile:dualclock") {
       Trace::SetDefaultClockSource(kProfilerClockSourceDual);
     } else if (StartsWith(option, "-Xprofile:")) {
-      if (!ParseStringAfterChar(option, ';', &profile_output_filename_)) {
+      if (!ParseStringAfterChar(option, ':', &profile_output_filename_)) {
         return false;
       }
       profile_ = true;