updated for version 7.4.312
Problem: Cannot figure out what argument list is being used for a window.
Solution: Add the arglistid() function. (Marcin Szamotulski)
diff --git a/runtime/doc/usr_41.txt b/runtime/doc/usr_41.txt
index 670c8fd..ee62cac 100644
--- a/runtime/doc/usr_41.txt
+++ b/runtime/doc/usr_41.txt
@@ -772,6 +772,7 @@
Buffers, windows and the argument list:
argc() number of entries in the argument list
argidx() current position in the argument list
+ arglistid() get id of the argument list
argv() get one entry from the argument list
bufexists() check if a buffer exists
buflisted() check if a buffer exists and is listed