MFH: r469589

stage-qa: Change stripped check to only look for .debug_info.

'strip -x', and splitting out debug symbols with objcopy, will leave
a .symtab section but will still remove the .debug_info section.  file(1)
shows this distinction as well after the use of 'strip -x':

    work/tcl8.7a1/unix/libtcl8.7.so:       ELF 64-bit LSB shared object, x86-64, version 1 (FreeBSD), dynamically linked, with debug_info, not stripped
    work/stage/usr/local/lib/libtcl8.7.so: ELF 64-bit LSB shared object, x86-64, version 1 (FreeBSD), dynamically linked, not stripped

This fixes false-positives when using install-strip and symbol splitting.

With hat:	portmgr

Approved by:	portmgr (implicit)

Mk/Scripts/qa.sh

@@ -210,7 +210,7 @@ stripped() {
 	find ${STAGEDIR} -type f ! -name '*.a' ! -name '*.o' \
 	    -exec readelf -S {} + 2>/dev/null | awk '\
 	    /File:/ {sub(/File: /, "", $0); file=$0} \
-	    /SYMTAB/ {print file}' |
+	    /[[:space:]]\.debug_info[[:space:]]*PROGBITS/ {print file}' |
 	    while read f; do
 		warn "'${f#${STAGEDIR}${PREFIX}/}' is not stripped consider trying INSTALL_TARGET=install-strip or using \${STRIP_CMD}"
 	done