mapi: Trim trailing spaces in stub.c and u_current.c

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17213>

src/mapi/stub.c

@@ -121,7 +121,7 @@ stub_find_dynamic(const char *name, int generate)
    static mtx_t dynamic_mutex = _MTX_INITIALIZER_NP;
    struct mapi_stub *stub = NULL;
    int count, i;
-   
+
    mtx_lock(&dynamic_mutex);
 
    if (generate)

src/mapi/u_current.c

@@ -90,7 +90,7 @@ extern void (*__glapi_noop_table[])(void);
  * thread, perhaps running on a different processor, is clearing it.  Because
  * of that, \c ThreadSafe, which can only ever be changed to \c GL_TRUE, is
  * used to determine whether or not the application is multithreaded.
- * 
+ *
  * In the TLS case, the variables \c _glapi_Dispatch and \c _glapi_Context are
  * hardcoded to \c NULL.  Instead the TLS variables \c _glapi_tls_Dispatch and
  * \c _glapi_tls_Context are used.  Having \c _glapi_Dispatch and