time: rename Curl_tvnow to Curl_now

... since the 'tv' stood for timeval and this function does not return a
timeval struct anymore.

Also, cleaned up the Curl_timediff*() functions to avoid typecasts and
clean up the descriptive comments.

Closes #2011

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/ssh.c b/lib/ssh.c
index 5406bf073..e225ed297 100644
--- a/lib/ssh.c
+++ b/lib/ssh.c
@@ -2834,7 +2834,7 @@ static CURLcode ssh_block_statemach(struct connectdata *conn,
   while((sshc->state != SSH_STOP) && !result) {
     bool block;
     time_t left = 1000;
-    struct curltime now = Curl_tvnow();
+    struct curltime now = Curl_now();
 
     result = ssh_statemach_act(conn, &block);
     if(result)