Fixed bogus existence test related to searching for a nearby obj

directory.  manpath.1 is always in the current (= object) directory,
so don't search for it.

gnu/usr.bin/man/manpath/Makefile

@@ -1,5 +1,6 @@
 PROG=	manpath
 SRCS=	manpath.c
+MAN1=	manpath.1
 
 .if exists(${.OBJDIR}/../lib)
 LIBDESTDIR=	${.OBJDIR}/../lib
@@ -9,12 +10,6 @@ LIBDESTDIR=	${.CURDIR}/../lib
 DPADD=	${LIBDESTDIR}/libman.a
 LDADD=	-L${LIBDESTDIR} -lman
 
-.if exists(${.OBJDIR})
-MAN1=${.OBJDIR}/manpath.1
-.else
-MAN1=${.CURDIR}/manpath.1
-.endif
-
 CFLAGS+= -DMAIN -DSTDC_HEADERS -DPOSIX -DHAS_TROFF -DDO_UNCOMPRESS
 CFLAGS+= -DALT_SYSTEMS -I${.CURDIR}/../lib -I${.OBJDIR}/../lib
 CLEANFILES+=	${MAN1}