Update runtime files.
diff --git a/runtime/doc/change.txt b/runtime/doc/change.txt
index 3a8107e..d1fcb5d 100644
--- a/runtime/doc/change.txt
+++ b/runtime/doc/change.txt
@@ -1,4 +1,4 @@
-*change.txt* For Vim version 7.4. Last change: 2015 Sep 06
+*change.txt* For Vim version 7.4. Last change: 2015 Oct 17
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -863,6 +863,36 @@
:s/\([ab]\)\|\([cd]\)/\1x/g modifies "a b c d" to "ax bx x x"
<
+ *:sc* *:sce* *:scg* *:sci* *:scI* *:scl* *:scp* *:sg* *:sgc*
+ *:sge* *:sgi* *:sgI* *:sgl* *:sgn* *:sgp* *:sgr* *:sI* *:si*
+ *:sic* *:sIc* *:sie* *:sIe* *:sIg* *:sIl* *:sin* *:sIn* *:sIp*
+ *:sip* *:sIr* *:sir* *:sr* *:src* *:srg* *:sri* *:srI* *:srl*
+ *:srn* *:srp*
+2-letter and 3-letter :substitute commands ~
+
+ List of :substitute commands
+ | c e g i I n p l r
+ | c :sc :sce :scg :sci :scI :scn :scp :scl ---
+ | e
+ | g :sgc :sge :sg :sgi :sgI :sgn :sgp :sgl :sgr
+ | i :sic :sie --- :si :siI :sin :sip --- :sir
+ | I :sIc :sIe :sIg :sIi :sI :sIn :sIp :sIl :sIr
+ | n
+ | p
+ | l
+ | r :src --- :srg :sri :srI :srn :srp :srl :sr
+
+Exceptions:
+ :scr is `:scriptnames`
+ :se is `:set`
+ :sig is `:sign`
+ :sil is `:silent`
+ :sn is `:snext`
+ :sp is `:split`
+ :sl is `:sleep`
+ :sre is `:srewind`
+
+
Substitute with an expression *sub-replace-expression*
*sub-replace-\=* *s/\=*
When the substitute string starts with "\=" the remainder is interpreted as an