Use correct arguments to the .TH command.
@ -1,4 +1,4 @@
.TH WAIT 03/21/2013 "wait4 @PACKAGE_VERSION]" "wait4 Manual"
.TH WAIT 1 2013-03-23 "wait4 @PACKAGE_VERSION]" "wait4 Manual"
.SH NAME
wait4 \- Wait for arbitrary processes