Update clang-format to 5.0
diff --git a/src/core/lib/support/log_android.cc b/src/core/lib/support/log_android.cc
index 9e8529c..73d24cd 100644
--- a/src/core/lib/support/log_android.cc
+++ b/src/core/lib/support/log_android.cc
@@ -39,9 +39,9 @@
   return ANDROID_LOG_DEFAULT;
 }
 
-extern "C" void gpr_log(const char *file, int line, gpr_log_severity severity,
-                        const char *format, ...) {
-  char *message = NULL;
+extern "C" void gpr_log(const char* file, int line, gpr_log_severity severity,
+                        const char* format, ...) {
+  char* message = NULL;
   va_list args;
   va_start(args, format);
   vasprintf(&message, format, args);
@@ -50,10 +50,10 @@
   free(message);
 }
 
-extern "C" void gpr_default_log(gpr_log_func_args *args) {
-  const char *final_slash;
-  const char *display_file;
-  char *output = NULL;
+extern "C" void gpr_default_log(gpr_log_func_args* args) {
+  const char* final_slash;
+  const char* display_file;
+  char* output = NULL;
 
   final_slash = strrchr(args->file, '/');
   if (final_slash == NULL)