remove sprintf

src/core/SkError.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkTLS.h"
 #include "SkTypes.h"
 #include "SkError.h"
@@ skipping 98 matching lines @@
             error_name = "Out Of Memory";
             break;
         case kParseError_SkError:
             error_name = "Parse Error";
             break;
         default:
             error_name = "Unknown error";
             break;
     }
 
-    sprintf( str, "%s: ", error_name );
+    snprintf( str, ERROR_STRING_LENGTH, "%s: ", error_name );
     int string_left = SkToInt(ERROR_STRING_LENGTH - strlen(str));
     str += strlen(str);
 
     va_start( args, fmt );
     vsnprintf( str, string_left, fmt, args );
     va_end( args );
     SkErrorCallbackFunction fn = THREAD_ERROR_CALLBACK;
     if (fn && code != kNoError_SkError) {
         fn(code, THREAD_ERROR_CONTEXT);
     }
 }