Fix cpplint whitespace/comments issues

Change-Id: Iae286862c85fb8fd8901eae1204cd6d271d69496
diff --git a/runtime/signal_catcher.cc b/runtime/signal_catcher.cc
index a630db8..15eb27d 100644
--- a/runtime/signal_catcher.cc
+++ b/runtime/signal_catcher.cc
@@ -44,7 +44,7 @@
   // On Android, /proc/self/cmdline will have been rewritten to something like "system_server".
   std::string current_cmd_line;
   if (ReadFileToString("/proc/self/cmdline", &current_cmd_line)) {
-    current_cmd_line.resize(current_cmd_line.size() - 1); // Lose the trailing '\0'.
+    current_cmd_line.resize(current_cmd_line.size() - 1);  // Lose the trailing '\0'.
     std::replace(current_cmd_line.begin(), current_cmd_line.end(), '\0', ' ');
 
     os << "Cmdline: " << current_cmd_line;