Updated documentation.

doc/snac.1

@@ -137,9 +137,8 @@ Initializes the database. This is an interactive command; necessary
 information will be prompted for. The
 .Ar basedir
 directory must not exist.
-.It Cm purge Ar basedir Op uid
-Purges old data from the timeline of all users. If a user id is
-provided, only this user's timeline will be purged.
+.It Cm purge Ar basedir
+Purges old data from the timeline of all users.
 .It Cm adduser Ar basedir Op uid
 Adds a new user to the server. This is an interactive command;
 necessary information will be prompted for. Also, a copy of

doc/snac.5

@@ -61,7 +61,8 @@ Server configuration.
 .It Pa user/
 Directory holding user subdirectories.
 .It Pa archive/
-If this directory exists, all input and output messages are stored into.
+If this directory exists, all input and output messages are logged inside it,
+including HTTP headers. Only useful for debugging. May grow to enormous sizes.
 .El
 .Pp
 Each user directory is a subdirectory of