fix spacing
diff --git a/Modules/_hashopenssl.c b/Modules/_hashopenssl.c
index 6a2a9af..d5dde6a 100644
--- a/Modules/_hashopenssl.c
+++ b/Modules/_hashopenssl.c
@@ -508,8 +508,8 @@
         HMAC_CTX_cleanup(&hctx_tpl);
         return 0;
     }
-    while(tkeylen) {
-        if(tkeylen > mdlen)
+    while (tkeylen) {
+        if (tkeylen > mdlen)
             cplen = mdlen;
         else
             cplen = tkeylen;