Bump shared library versions after ncurses bump in 13.

A few shared libraries in the base system link against ncurses.  An
upgrade from a 12.x host to 13 results in ABI breakage for existing
binaries since the newer versions of these libraries link against the
newer ncurses while the binary itself links against the older ncurses.
For example, dialog4ports built on 12.x sometimes crashes on 13 since
it depends on libdialog which links against ncurses internally.

(cherry picked from commit 0b7f1af804)

ObsoleteFiles.inc

@@ -36,6 +36,17 @@
 #   xargs -n1 | sort | uniq -d;
 # done
 
+# 20210204: bump shared libraries which link against ncurses
+OLD_LIBS+=lib/libedit.so.7
+OLD_LIBS+=usr/lib/libdialog.so.8
+OLD_LIBS+=usr/lib/libdpv.so.1
+OLD_LIBS+=usr/lib/libform.so.5
+OLD_LIBS+=usr/lib/libformw.so.5
+OLD_LIBS+=usr/lib/libmenu.so.5
+OLD_LIBS+=usr/lib/libmenuw.so.5
+OLD_LIBS+=usr/lib/libpanel.so.5
+OLD_LIBS+=usr/lib/libpanelw.so.5
+
 # 20210116: if_wl_wavelan.h removed
 .if ${TARGET_ARCH} == "i386"
 OLD_FILES+=usr/include/machine/if_wl_wavelan.h

gnu/lib/libdialog/Makefile

@@ -3,7 +3,7 @@
 DIALOG=		${SRCTOP}/contrib/dialog
 
 LIB=		dialog
-SHLIB_MAJOR=	8
+SHLIB_MAJOR=	9
 SRCS=		argv.c arrows.c buildlist.c buttons.c calendar.c checklist.c \
 		columns.c dlg_keys.c editbox.c fselect.c formbox.c guage.c \
 		help.c inputbox.c inputstr.c menubox.c mixedform.c \

lib/libdpv/Makefile

@@ -2,7 +2,7 @@
 
 PACKAGE=	dpv
 LIB=		dpv
-SHLIB_MAJOR=	1
+SHLIB_MAJOR=	2
 INCS=		dpv.h
 MAN=		dpv.3
 MLINKS=		dpv.3 dpv_free.3

lib/libedit/Makefile

@@ -7,7 +7,7 @@ PACKAGE=clibs
 EDITDIR=	${SRCTOP}/contrib/libedit
 .PATH: ${EDITDIR}
 
-SHLIB_MAJOR=	7
+SHLIB_MAJOR=	8
 SHLIBDIR?= /lib
 
 WARNS?=	3

lib/ncurses/form/Makefile

@@ -6,6 +6,7 @@
 SRCDIR=	${NCURSES_DIR}/form
 
 LIB=	formw
+SHLIB_MAJOR=	6
 
 .PATH: ${SRCDIR}
 SRCS=	\

lib/ncurses/menu/Makefile

@@ -6,6 +6,7 @@
 SRCDIR=	${NCURSES_DIR}/menu
 
 LIB=	menuw
+SHLIB_MAJOR=	6
 
 .PATH: ${SRCDIR}
 SRCS=	\

lib/ncurses/panel/Makefile

@@ -6,6 +6,7 @@
 SRCDIR=	${NCURSES_DIR}/panel
 
 LIB=	panelw
+SHLIB_MAJOR=	6
 
 .PATH: ${SRCDIR}
 SRCS=	\