nuageinit.7: grammar fixes

Author: Maxim Konovalov

libexec/nuageinit/nuageinit.7

@@ -293,7 +293,7 @@ The list of other groups the user should belong to.
 .It Ic locked
 Boolean to determine if the user account should be locked.
 .It Ic sudo
-A string or an array of strings which which should be appended to
+A string or an array of strings which should be appended to
 .Pa /usr/local/etc/sudoers.d/90-nuageinit-users
 .El
 .Pp
@@ -333,7 +333,7 @@ It accepts the following keys for each objects:
 The content to be written to the file.
 If this key is not existing then an empty file will be created.
 .It Ic encoding
-Specifiy the encoding used for content.
+Specify the encoding used for content.
 If not specified, then plain text is considered.
 Only
 .Ar b64