ECDH: Fix whitespace, permissions
diff --git a/3rdparty/everest/library/everest.c b/3rdparty/everest/library/everest.c
old mode 100755
new mode 100644
index 4b3a799..2e2422f
--- a/3rdparty/everest/library/everest.c
+++ b/3rdparty/everest/library/everest.c
@@ -107,4 +107,5 @@
     return mbedtls_x25519_calc_secret( x25519_ctx, olen, buf, blen, f_rng, p_rng );
 }
 
-#endif /* MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED */
\ No newline at end of file
+#endif /* MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED */
+