Manpage update

docs/man/man1/ttail.1

 ttail \- timed tail for logfiles
 .SH "SYNOSPIS"
 .PP
-ttail [OPTION]\&.\&.\&. [FILE]\&.\&.\&. 
+ttail [OPTION]\&.\&.\&. [FILE]\&.\&.\&. 
 .SH "DESCRIPTION"
 .PP
 Display loglines given a minimum date and/or a maximum date\&.
 .PP
+For huge files (or a huge list of files) you should have better performance giving files as argument (thank's to binary search on file list and in files)\&.
+.PP
 \fB-d --date-min=DATE\fP
 .RS 4
 Start to output loglines starting from this date 
 Set a constant prefix len to drop for each logline 
 .RE
 .PP
+\fB-P --permissive\fP
+.RS 4
+Tell ttail to continue after some errors (prefix or date not found, invalid file, etc\&.) 
+.RE
+.PP
 \fB-r --re-prefix=REGEX\fP
 .RS 4
 Drop matching prefix for each logline 
 %Oy The year (offset from C) using the locale's alternative numeric symbols\&.
 .SH "Known limitations"
 .PP
-Loglines has to be sorted\&.
+Files given as argument has to be sorted\&.
 .SH "AUTHOR"
 .PP
 Written by Yann Weber <yann.weber@members.fsf.org>

src/include/doxygen.h

 /**@page ttail
  *@brief timed tail for logfiles
  *@section SYNOSPIS
- *ttail [OPTION]... [FILE]...
+ *ttail [OPTION]... [FILE]...
  *@section DESCRIPTION
  *Display loglines given a minimum date and/or a maximum date.
  *
+ *For huge files (or a huge list of files) you should have better performance
+ *giving files as argument (thank's to binary search on file list and in files).
+ *
  *@par -d --date-min=DATE
  *Start to output loglines starting from this date
  *@par -m --date-max=DATE
  *-m --date-max options (see @ref datefmt for more details)
  *@par -p --prefix-len
  *Set a constant prefix len to drop for each logline
+ *@par -P --permissive
+ *Tell ttail to continue after some errors (prefix or date not found, invalid file, etc.)
  *@par -r --re-prefix=REGEX
  *Drop matching prefix for each logline
  *@par -E --re-extended 
  * 
  * \%Oy    The year (offset from %C) using the locale's alternative numeric symbols.
  *
- *@section known_limits Known limitations
- *Loglines has to be sorted.
+ *@section known_limitations Known limitations
+ *Files given as argument has to be sorted.
  *
  *@section AUTHOR
  *Written by Yann Weber <yann.weber@members.fsf.org>