patch 8.1.1837: popup test fails if clipboard is supported but not working
Problem: Popup test fails if clipboard is supported but not working.
Solution: Add the "clipboard_working" feature. Also use Check commands
instead of "if" and "throw". And remove stray ch_logfile().
diff --git a/src/version.c b/src/version.c
index 852595d..77d9406 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 1837,
+/**/
1836,
/**/
1835,