Add the settabvar() and gettabvar() functions.
Various runtime file updates.
diff --git a/runtime/doc/quickfix.txt b/runtime/doc/quickfix.txt
index 6a9be16..db7a82d 100644
--- a/runtime/doc/quickfix.txt
+++ b/runtime/doc/quickfix.txt
@@ -1260,7 +1260,7 @@
This can be solved by printing absolute directories in the "enter directory"
message or by printing "leave directory" messages..
-To avoid this problems, ensure to print absolute directory names and "leave
+To avoid this problem, ensure to print absolute directory names and "leave
directory" messages.
Examples for Makefiles: