patch 8.1.1719: popup too wide when 'showbreak' is set
Problem: Popup too wide when 'showbreak' is set.
Solution: Set window width when computing line length. (closes #4701)
diff --git a/src/testdir/dumps/Test_popupwin_showbreak.dump b/src/testdir/dumps/Test_popupwin_showbreak.dump
new file mode 100644
index 0000000..e7d03d0
--- /dev/null
+++ b/src/testdir/dumps/Test_popupwin_showbreak.dump
@@ -0,0 +1,10 @@
+>1+0&#ffffff0| @73
+|2| @73
+|3| @73
+|4| @25|╔+0#0000001#ffd7ff255|═@17|╗| +0#0000000#ffffff0@27
+|5| @25|║+0#0000001#ffd7ff255| |a| |l|o|n|g| |l|i|n|e| |h|e|r|e| |║| +0#0000000#ffffff0@27
+|6| @25|╚+0#0000001#ffd7ff255|═@17|╝| +0#0000000#ffffff0@27
+|7| @73
+|8| @73
+|9| @73
+@57|1|,|1| @10|T|o|p|