s/manpage/man page/

man2/vfork.2

@@ -160,7 +160,7 @@ other architectures) it is an independent system call.
 Support was added in glibc 2.0.112.
 .SH BUGS
 It is rather unfortunate that Linux revived this spectre from the past.
-The BSD manpage states:
+The BSD man page states:
 "This system call will be eliminated when proper system sharing mechanisms
 are implemented.
 Users should not depend on the memory sharing semantics of
@@ -170,7 +170,7 @@ as it will, in that case, be made synonymous to
 "
 
 Details of the signal handling are obscure and differ between systems.
-The BSD manpage states:
+The BSD man page states:
 "To avoid a possible deadlock situation, processes that are children
 in the middle of a
 .BR vfork ()

man3/clearenv.3

@@ -72,7 +72,7 @@ the assignment
 .RE
 will probably do.
 .LP
-The DG/UX and Tru64 manpages write: If
+The DG/UX and Tru64 man pages write: If
 .I environ
 has been modified by anything other than the
 .BR putenv (3),

man5/elf.5

@@ -1461,7 +1461,7 @@ The original version of this manual page was written by
 with inspiration from BSDi's
 .Bsx
 .Nm elf
-manpage.
+man page.
 .Sh SEE ALSO
 .Xr as 1 ,
 .Xr gdb 1 ,

man5/utmp.5

@@ -297,7 +297,7 @@ time into a real \fIstruct timeval\fP,
 then copy the two fields to
 .IR ut_tv .)
 .SH BUGS
-This manpage is based on the libc5 one, things may work differently now.
+This man page is based on the libc5 one, things may work differently now.
 .SH "SEE ALSO"
 .BR ac (1),
 .BR date (1),