apply code-format changes

src/gpu.cpp

@@ -4553,17 +4553,15 @@ int resolve_shader_info(const uint32_t* spv_data, size_t spv_data_size, ShaderIn
 
 namespace ncnn {
 
-int create_gpu_instance(const char * driver_path)
+int create_gpu_instance(const char* driver_path)
 {
     return 0;
 }
 
-
 void destroy_gpu_instance()
 {
 }
 
-
 int get_gpu_count()
 {
     return 0;
@@ -4571,5 +4569,4 @@ int get_gpu_count()
 
 } // namespace ncnn
 
-
 #endif // NCNN_VULKAN

src/gpu.h

@@ -478,7 +478,7 @@ NCNN_EXPORT int resolve_shader_info(const uint32_t* spv_data, size_t spv_data_si
 #else
 namespace ncnn {
 
-NCNN_EXPORT int create_gpu_instance(const char * driver_path = 0);
+NCNN_EXPORT int create_gpu_instance(const char* driver_path = 0);
 
 NCNN_EXPORT void destroy_gpu_instance(void);