patch 9.0.0683: cannot specify a time for :echowindow
Problem: Cannot specify a time for :echowindow.
Solution: A count can be used to specify the display time. Add
popup_findecho().
diff --git a/src/testdir/dumps/Test_echowindow_8.dump b/src/testdir/dumps/Test_echowindow_8.dump
index d57d437..cb5b50d 100644
--- a/src/testdir/dumps/Test_echowindow_8.dump
+++ b/src/testdir/dumps/Test_echowindow_8.dump
@@ -4,5 +4,5 @@
|═+0#e000002&@74
|l|a|t|e|r| |m|e|s@1|a|g|e| @61
|m|o|r|e| @70
-|:+0#0000000&|e|c|h|o|w|i|n| |'|m|o|r|e|'| @59
+|:+0#0000000&|7|e|c|h|o|w|i|n| |'|m|o|r|e|'| @58
@57|0|,|0|-|1| @8|A|l@1|