Fix code styling for return statements
diff --git a/library/ecdh.c b/library/ecdh.c
index a6bf330..738d99f 100644
--- a/library/ecdh.c
+++ b/library/ecdh.c
@@ -144,7 +144,7 @@
         return( ret );
 
     *olen = grp_len + pt_len;
-    return 0;
+    return( 0 );
 }
 
 /*
@@ -166,7 +166,7 @@
                 != 0 )
         return( ret );
 
-    return 0;
+    return( 0 );
 }
 
 /*