patch 8.2.0963: number increment/decrement does not work with 'virtualedit'

Problem:    Number increment/decrement does not work with 'virtualedit'.
Solution:   Handle coladd changing. (Christian Brabandt, closes #6240,
            closes #923)
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index d8e3192..779451b 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -8556,8 +8556,6 @@
 					    *'virtualedit'* *'ve'*
 'virtualedit' 've'	string	(default "")
 			global
-			{not available when compiled without the
-			|+virtualedit| feature}
 	A comma separated list of these words:
 	    block	Allow virtual editing in Visual block mode.
 	    insert	Allow virtual editing in Insert mode.
diff --git a/runtime/doc/various.txt b/runtime/doc/various.txt
index 060cec0..9fe8d61 100644
--- a/runtime/doc/various.txt
+++ b/runtime/doc/various.txt
@@ -470,7 +470,7 @@
 N  *+viminfo*		|'viminfo'|
    *+vertsplit*		Vertically split windows |:vsplit|; Always enabled
 			since 8.0.1118.
-N  *+virtualedit*	|'virtualedit'|
+N  *+virtualedit*	|'virtualedit'| Always enabled since 8.1.826.
 T  *+visual*		Visual mode |Visual-mode| Always enabled since 7.4.200.
 T  *+visualextra*	extra Visual mode commands |blockwise-operators|
 T  *+vreplace*		|gR| and |gr|