Fix some style issues in the ARM code....

src/platform-linux.cc

Index: src/platform-linux.cc
===================================================================
--- src/platform-linux.cc	(revision 3292)
+++ src/platform-linux.cc	(working copy)
@@ -89,7 +89,9 @@
 }
 
 
-bool OS::fgrep_vfp(const char* file_name, const char* string) {
+bool OS::ArmCpuHasFeature(OS::CpuFeature feature) {
+  const char* search_string = NULL;
+  const char* file_name = "/proc/cpuinfo";
   // Simple detection of VFP at runtime for Linux.
   // It is based on /proc/cpuinfo, which reveals hardware configuration
   // to user-space applications.  According to ARM (mid 2009), no similar
@@ -100,13 +102,20 @@
   // and not using STL string and ifstream because,
   // on Linux, it's reading from a (non-mmap-able)
   // character special device.
+  switch (feature) {
+    case VFP:
+      search_string = "vfp";
+      break;
+    default:
+      UNREACHABLE();
+  }
 
   FILE* f = NULL;
+  const char* what = search_string;
 
   if (NULL == (f = fopen(file_name, "r")))
     return false;
 
-  const char* what = string;
   int k;
   while (EOF != (k = fgetc(f))) {
     if (k == *what) {
@@ -118,13 +127,13 @@
         fclose(f);
         return true;
       } else {
-        what = string;
+        what = search_string;
       }
     }
   }
   fclose(f);
 
-  // Did not find string in the file file_name.
+  // Did not find string in the proc file.
   return false;
 }