diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index b354ddf..80d2360 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 7.4.  Last change: 2016 Apr 12
+*options.txt*	For Vim version 7.4.  Last change: 2016 Apr 20
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -4863,6 +4863,7 @@
 			feature}
 	Specifies the name of the Lua shared library. The default is
 	DYNAMIC_LUA_DLL, which was specified at compile time.
+	Environment variables are expanded |:set_env|.
 	This option cannot be set from a |modeline| or in the |sandbox|, for
 	security reasons.
 
@@ -5030,7 +5031,7 @@
 	without a limit.
 	On 64 bit machines higher values might work.  But hey, do you really
 	need more than 2 Gbyte for text editing?  Keep in mind that text is
-	stored in the swap file, one can edit files > 2 Gbyte anyay.  We do
+	stored in the swap file, one can edit files > 2 Gbyte anyway.  We do
 	need the memory to store undo info.
 	Also see 'maxmem'.
 
@@ -5590,6 +5591,7 @@
 			feature}
 	Specifies the name of the Perl shared library. The default is
 	DYNAMIC_PERL_DLL, which was specified at compile time.
+	Environment variables are expanded |:set_env|.
 	This option cannot be set from a |modeline| or in the |sandbox|, for
 	security reasons.
 
@@ -5727,6 +5729,7 @@
 			feature}
 	Specifies the name of the Python 2.x shared library. The default is
 	DYNAMIC_PYTHON_DLL, which was specified at compile time.
+	Environment variables are expanded |:set_env|.
 	This option cannot be set from a |modeline| or in the |sandbox|, for
 	security reasons.
 
@@ -5738,6 +5741,7 @@
 			feature}
 	Specifies the name of the Python 3 shared library. The default is
 	DYNAMIC_PYTHON3_DLL, which was specified at compile time.
+	Environment variables are expanded |:set_env|.
 	This option cannot be set from a |modeline| or in the |sandbox|, for
 	security reasons.
 
@@ -5968,6 +5972,7 @@
 			feature}
 	Specifies the name of the Ruby shared library. The default is
 	DYNAMIC_RUBY_DLL, which was specified at compile time.
+	Environment variables are expanded |:set_env|.
 	This option cannot be set from a |modeline| or in the |sandbox|, for
 	security reasons.
 
@@ -7462,6 +7467,7 @@
 			feature}
 	Specifies the name of the Tcl shared library. The default is
 	DYNAMIC_TCL_DLL, which was specified at compile time.
+	Environment variables are expanded |:set_env|.
 	This option cannot be set from a |modeline| or in the |sandbox|, for
 	security reasons.