mesa: minor whitespace fixes

src/mesa/main/drawpix.c

@@ -188,7 +188,7 @@ _mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
       goto end;
    }
 
-   if (!ctx->Current.RasterPosValid || width ==0 || height == 0) {
+   if (!ctx->Current.RasterPosValid || width == 0 || height == 0) {
       goto end; /* no-op, not an error */
    }
 

src/mesa/main/extensions.c

@@ -753,7 +753,7 @@ _mesa_extension_is_enabled( struct gl_context *ctx, const char *name )
 static char *
 get_extension_override( struct gl_context *ctx )
 {
-   const char *env_const= _mesa_getenv("MESA_EXTENSION_OVERRIDE");
+   const char *env_const = _mesa_getenv("MESA_EXTENSION_OVERRIDE");
    char *env;
    char *ext;
    char *extra_exts;