-datadir is now allowed in config files

contrib/debian/manpages/bitcoin.conf.5

@@ -2,7 +2,7 @@
 .SH NAME
 bitcoin.conf \- bitcoin configuration file
 .SH SYNOPSIS
-All command-line options (except for '\-datadir' and '\-conf') may be specified in a configuration file, and all configuration file options may also be specified on the command line. Command-line options override values set in the configuration file.
+All command-line options (except for '\-conf') may be specified in a configuration file, and all configuration file options may also be specified on the command line. Command-line options override values set in the configuration file.
 .TP
 The configuration file is a list of 'setting=value' pairs, one per line, with optional comments starting with the '#' character.
 .TP