Phrasing

Clarify that the parameter to the "-o" switch is a MAILBOX instead of a
FOLDER (which could be confused with an ordinary filesystem folder).

Added per Roman Nezval's comment.

doc/mboxgrep.1

@@ -72,8 +72,8 @@ Do not lock files.  This option is meaningful only if a mbox folder (see below)
 is scanned.
 .IP "-c, --count"
 Suppress normal output and print a count of matching messages.
-.IP "-o, --output=FOLDER"
-Suppress normal output and write messages to destination folder FOLDER instead.
+.IP "-o, --output=MAILBOX"
+Suppress normal output and write messages to destination MAILBOX instead.
 .IP "-p, --pipe=COMMAND"
 Pipe each found message to COMMAND
 .IP "-d, --delete"

doc/mboxgrep.info

@@ -1,4 +1,4 @@
-This is mboxgrep.info, produced by makeinfo version 6.7 from
+This is mboxgrep.info, produced by makeinfo version 6.8 from
 mboxgrep.texi.
 
 INFO-DIR-SECTION Mail
@@ -151,10 +151,10 @@ options below change such behavior.
 '-nd'
      Ignore duplicate messages.
 
-'--output=FOLDER'
-'-o FOLDER'
-     Suppress normal output and write messages to destination folder
-     FOLDER instead.
+'--output=MAILBOX'
+'-o MAILBOX'
+     Suppress normal output and write messages to destination MAILBOX
+     instead.
 
      Note that 'mboxgrep' assumes the output folder is of the same
      format as the input folder.  Currently there is no possibility to
@@ -256,11 +256,11 @@ Node: Miscellaneous1828
 Node: File locking2113
 Node: Regexp selection2750
 Node: Output control3302
-Node: Search scope selection4346
-Node: Mailbox type selection4587
-Node: Examples4908
-Node: Bugs5732
-Node: To Vicky6150
+Node: Search scope selection4342
+Node: Mailbox type selection4583
+Node: Examples4904
+Node: Bugs5728
+Node: To Vicky6146
 
 End Tag Table
 

doc/mboxgrep.texi

@@ -171,10 +171,9 @@ Use with extreme caution.
 @itemx -nd
 Ignore duplicate messages.
 
-@item --output=FOLDER
-@itemx -o FOLDER
-Suppress normal output and write messages to destination folder FOLDER
-instead. 
+@item --output=MAILBOX
+@itemx -o MAILBOX
+Suppress normal output and write messages to destination MAILBOX instead.
 
 Note that @code{mboxgrep} assumes the output folder is of the same format 
 as the input folder.  Currently there is no possibility to convert folders.