doc: Add missing wallet-tool manpages

doc/man/bitcoin-tx.1

@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.6.
-.TH BITCOIN-TX "1" "December 2018" "bitcoin-tx v0.17.99.0" "User Commands"
+.TH BITCOIN-TX "1" "February 2019" "bitcoin-tx v0.17.99.0" "User Commands"
 .SH NAME
 bitcoin-tx \- manual page for bitcoin-tx v0.17.99.0
 .SH SYNOPSIS
@@ -92,7 +92,7 @@ sign=SIGHASH\-FLAGS
 .IP
 Add zero or more signatures to transaction. This command requires JSON
 registers:prevtxs=JSON object, privatekeys=JSON object. See
-signrawtransaction docs for format of sighash flags, JSON
+signrawtransactionwithkey docs for format of sighash flags, JSON
 objects.
 .PP
 Register Commands:
@@ -105,7 +105,7 @@ set=NAME:JSON\-STRING
 .IP
 Set register NAME to given JSON\-STRING
 .SH COPYRIGHT
-Copyright (C) 2009-2018 The Bitcoin Core developers
+Copyright (C) 2009-2019 The Bitcoin Core developers
 
 Please contribute if you find Bitcoin Core useful. Visit
 <https://bitcoincore.org> for further information about the software.