Removed rogue space on QUIC output

Before:

```
 TLS 1.2    offered (OK)
 TLS 1.3    offered (OK): final
 QUIC        not offered or timed out
 NPN/SPDY   not offered                                                                                      
 ALPN/HTTP2 h2, http/1.1 (offered)                                                                           
```

After:

```
 TLS 1.2    offered (OK)
 TLS 1.3    offered (OK): final
 QUIC       not offered or timed out
 NPN/SPDY   not offered
 ALPN/HTTP2 h2, http/1.1 (offered)
```

Author: digininja

testssl.sh

@@ -6169,7 +6169,7 @@ sub_quic() {
                if [[ -n "$PROXY" ]]; then
                     proxy_hint_str="(tried directly, is not proxyable):"
                fi
-               outln "$proxy_hint_str not offered or timed out"
+               outln "${proxy_hint_str}not offered or timed out"
                fileout "$jsonID" "INFO" "$proxy_hint_str not offered"
           else
                pr_svrty_best "offered (OK)"