devel/mdb: Update to a newer snapshot which builds on recent HEAD.

[jhb]

Summary

This snapshot includes fixes to build again on HEAD after the OpenZFS
import. It also fixes ::kgrep on HEAD after the changes in r346302.
Finally, it includes debug symbols in shipped binaries to ease future debugging.

Test Plan

• poudriere testport on both stable/12 and head

[jhb]

• Update to a newer snapshot that fixes kgrep and a weird /usr/local issue.
• Include debug symbols in installed files to ease debugging.

[kevans]

With the STRIP change we discussed:

Approved by: kevans (ports)

[jhb]

• Actually install debug symbols.

head/devel/mdb/Makefile

install_kernel ( ) (
         set -o xtrace
         cd "${NANO_SRC}"
         ${NANO_MAKE} installkernel DESTDIR="${NANO_WORLDDIR}" DB_FROM_SRC=yes
 
         ) > ${NANO_LOG}/_.ik 2>&1
 )
 
 native_xtools ( ) (
-        print 2 "Installing the optimized native build tools for cross env"
+        pprint 2 "Installing the optimized native build tools for cross env"
         pprint 3 "log: ${NANO_LOG}/_.native_xtools"
 
         (
 
         nano_make_install_env
         set -o xtrace
         cd "${NANO_SRC}"
         ${NANO_MAKE} native-xtools

head/devel/mdb/distinfo

install_kernel ( ) (
         set -o xtrace
         cd "${NANO_SRC}"
         ${NANO_MAKE} installkernel DESTDIR="${NANO_WORLDDIR}" DB_FROM_SRC=yes
 
         ) > ${NANO_LOG}/_.ik 2>&1
 )
 
 native_xtools ( ) (
-        print 2 "Installing the optimized native build tools for cross env"
+        pprint 2 "Installing the optimized native build tools for cross env"
         pprint 3 "log: ${NANO_LOG}/_.native_xtools"
 
         (
 
         nano_make_install_env
         set -o xtrace
         cd "${NANO_SRC}"
         ${NANO_MAKE} native-xtools