Unbreak "make lint" for programs and "make llib-l${LIB}.ln" for

libraries a little by not passing all of ${CFLAGS} to lint.  Pass
only options matching -[DIU]*.  The important -nostdinc option can't
be passed like I first thought because lint misinterprets as
"-n -o stdinc".  The unimportant -B* option can't be passed because
lint doesn't support it.  Otherwise, we pass the same options as
to mkdep, exept for a bug in the latter: -U* is not passed.  All
this depends on option args not being separated from option flags
by a space.

share/mk/bsd.lib.mk

@@ -229,7 +229,7 @@ lib${LIB}_pic.a:: ${SOBJS}
 .endif
 
 llib-l${LIB}.ln: ${SRCS}
-	${LINT} -C${LIB} ${CFLAGS} ${.ALLSRC:M*.c}
+	${LINT} -C${LIB} ${CFLAGS:M-[DIU]*} ${.ALLSRC:M*.c}
 
 .if !target(clean)
 clean:	_SUBDIR

share/mk/bsd.prog.mk

@@ -178,7 +178,7 @@ distribute: _SUBDIR
 .if !target(lint)
 lint: ${SRCS} _SUBDIR
 .if defined(PROG)
-	@${LINT} ${LINTFLAGS} ${.ALLSRC} | more 2>&1
+	${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.ALLSRC} | more 2>&1
 .endif
 .endif