patch 8.0.0716: not easy to start Vim cleanly
Problem: Not easy to start Vim cleanly without changing the viminfo file.
Not possible to know whether the -i command line flag was used.
Solution: Add the --clean command line argument. Add the 'viminfofile'
option. Add "-u DEFAULTS".
diff --git a/src/testdir/test_channel_write.py b/src/testdir/test_channel_write.py
new file mode 100644
index 0000000..9c8813b
--- /dev/null
+++ b/src/testdir/test_channel_write.py
@@ -0,0 +1,18 @@
+#!/usr/bin/python
+#
+# Program that writes a number to stdout repeatedly
+#
+# This requires Python 2.6 or later.
+
+from __future__ import print_function
+import sys
+import time
+
+if __name__ == "__main__":
+
+ done = 0
+ while done < 10:
+ done = done + 1
+ print(done)
+ sys.stdout.flush()
+ time.sleep(0.05) # sleep 50 msec