remove trailing whitespace

lib/hcrypto/libtommath/bn_mp_exptmod.c

@@ -59,7 +59,7 @@ int mp_exptmod (mp_int * G, mp_int * X, mp_int * P, mp_int * Y)
      err = mp_exptmod(&tmpG, &tmpX, P, Y);
      mp_clear_multi(&tmpG, &tmpX, NULL);
      return err;
-#else 
+#else
      /* no invmod */
      return MP_VAL;
 #endif
@@ -86,7 +86,7 @@ int mp_exptmod (mp_int * G, mp_int * X, mp_int * P, mp_int * Y)
      dr = mp_reduce_is_2k(P) << 1;
   }
 #endif
-    
+
   /* if the modulus is odd or dr != 0 use the montgomery method */
 #ifdef BN_MP_EXPTMOD_FAST_C
   if (mp_isodd (P) == 1 || dr !=  0) {