DP in "an user" grammar police mode.

data/example.conf

@@ -851,7 +851,7 @@ mail
 	/*
 	 * This controls the minimum amount of time a user must wait before sending
 	 * another e-mail after they have sent one. It also controls the minimum time
-	 * an user must wait before they can receive another e-mail.
+	 * a user must wait before they can receive another e-mail.
 	 *
 	 * This feature prevents users from being mail bombed using Services and
 	 * it is highly recommended that it be used.
@@ -1389,7 +1389,7 @@ botserv
 	 * The bots are currently not affected by any modes or bans when they try to join a channel.
 	 * But some people may want to make it act like a real bot, that is, for example, remove all
 	 * the bans affecting the bot before joining the channel, remove a ban that affects the bot
-	 * set by an user when it is in the channel, and so on. Since it consumes a bit more CPU
+	 * set by a user when it is in the channel, and so on. Since it consumes a bit more CPU
 	 * time, you should not enable this on larger networks.
 	 *
 	 * This directive is optional.

src/botserv.cpp

@@ -99,7 +99,7 @@ void botchanmsgs(User *u, ChannelInfo *ci, const Anope::string &buf)
 
 	/* Now we can make kicker stuff. We try to order the checks
 	 * from the fastest one to the slowest one, since there's
-	 * no need to process other kickers if an user is kicked before
+	 * no need to process other kickers if a user is kicked before
 	 * the last kicker check.
 	 *
 	 * But FIRST we check whether the user is protected in any
@@ -373,7 +373,7 @@ BotInfo *findbot(const Anope::string &nick)
 
 /*************************************************************************/
 
-/* Returns ban data associated with an user if it exists, allocates it
+/* Returns ban data associated with a user if it exists, allocates it
    otherwise. */
 
 static BanData *get_ban_data(Channel *c, User *u)
@@ -415,7 +415,7 @@ static BanData *get_ban_data(Channel *c, User *u)
 
 /*************************************************************************/
 
-/* Returns BotServ data associated with an user on a given channel.
+/* Returns BotServ data associated with a user on a given channel.
  * Allocates it if necessary.
  */
 
@@ -484,7 +484,7 @@ void check_ban(ChannelInfo *ci, User *u, int ttbtype)
 
 /*************************************************************************/
 
-/* This makes a bot kick an user. Works somewhat like notice_lang in fact ;) */
+/* This makes a bot kick a user. Works somewhat like notice_lang in fact ;) */
 
 void bot_kick(ChannelInfo *ci, User *u, LanguageString message, ...)
 {

src/chanserv.cpp

@@ -587,7 +587,7 @@ void update_cs_lastseen(User *user, ChannelInfo *ci)
 
 /*************************************************************************/
 
-/* Returns the best ban possible for an user depending of the bantype
+/* Returns the best ban possible for a user depending of the bantype
    value. */
 
 int get_idealban(ChannelInfo *ci, User *u, Anope::string &ret)

src/nickalias.cpp

@@ -66,7 +66,7 @@ NickAlias::~NickAlias()
 {
 	FOREACH_MOD(I_OnDelNick, OnDelNick(this));
 
-	/* Second thing to do: look for an user using the alias
+	/* Second thing to do: look for a user using the alias
 	 * being deleted, and make appropriate changes */
 	User *u = finduser(this->nick);
 	if (u && u->Account())