remove trailing whitespace

lib/hcrypto/libtommath/bn_mp_fwrite.c

@@ -19,7 +19,7 @@ int mp_fwrite(mp_int *a, int radix, FILE *stream)
 {
    char *buf;
    int err, len, x;
-   
+
    if ((err = mp_radix_size(a, radix, &len)) != MP_OKAY) {
       return err;
    }
@@ -28,19 +28,19 @@ int mp_fwrite(mp_int *a, int radix, FILE *stream)
    if (buf == NULL) {
       return MP_MEM;
    }
-   
+
    if ((err = mp_toradix(a, buf, radix)) != MP_OKAY) {
       XFREE (buf);
       return err;
    }
-   
+
    for (x = 0; x < len; x++) {
        if (fputc(buf[x], stream) == EOF) {
           XFREE (buf);
           return MP_VAL;
        }
    }
-   
+
    XFREE (buf);
    return MP_OKAY;
 }