in_blob: fix glob function for win32

Set context glob path size correctly.

Signed-off-by: zshuang0316 <163435379+zshuang0316@users.noreply.github.com>

Author: zshuang0316

plugins/in_blob/win32_glob.c

@@ -150,6 +150,7 @@ static int glob(const char *path,
                 return result;
             }
         }
+        context->gl_pathc = entries;
     }
 
     return result;