catch up man files of 7.4.2295

there are no critical changes for translation.

Author: koron

runtime/doc/vim.1

@@ -321,7 +321,7 @@ When N is omitted, open one tab page for each file.
 \-R
 Read-only mode.
 The 'readonly' option will be set.
-You can still edit the buffer, but will be prevented from accidently
+You can still edit the buffer, but will be prevented from accidentally
 overwriting a file.
 If you do want to overwrite a file, add an exclamation mark to the Ex command,
 as in ":w!".