Fix cpplint whitespace/comments issues

Change-Id: Iae286862c85fb8fd8901eae1204cd6d271d69496
diff --git a/runtime/runtime_linux.cc b/runtime/runtime_linux.cc
index a4fc3af..47b72e9 100644
--- a/runtime/runtime_linux.cc
+++ b/runtime/runtime_linux.cc
@@ -245,7 +245,7 @@
   OsInfo os_info;
   const char* cmd_line = GetCmdLine();
   if (cmd_line == NULL) {
-    cmd_line = "<unset>"; // Because no-one called InitLogging.
+    cmd_line = "<unset>";  // Because no-one called InitLogging.
   }
   pid_t tid = GetTid();
   std::string thread_name(GetThreadName(tid));