Use system provided debugedit

Debugedit is split into a separate package, use it.

References:
  https://sourceware.org/bugzilla/show_bug.cgi?id=27351
  http://lists.rpm.org/pipermail/rpm-ecosystem/2021-February/000734.html
  https://sourceware.org/debugedit/

rpm-4_0.spec

@@ -92,6 +92,7 @@ BuildPreReq: rpm >= 3.0.6-ipl24mdk, %_bindir/subst
 # For debugedit.
 BuildPreReq: elfutils-devel
 BuildRequires: librpm-devel
+BuildRequires: debugedit
 
 # Automatically added by buildreq on Thu Apr 23 2009 and edited manually.
 BuildRequires: libdb4.7-devel libelf-devel liblzma-devel libpopt-devel zlib-devel

scripts/find-debuginfo-files.in

@@ -65,7 +65,7 @@ while read -r f; do
 	# Save canonical file name for later symlinks filtering.
 	readlink -ve "$debugf" >> .tmp/files-can
 
-	id=$(@RPMCONFIGDIR@/debugedit -n -i "$debugf")
+	id=$(debugedit -n -i "$debugf")
 	[ -n "$id" ] || continue
 
 	link=./usr/lib/debug/.build-id/${id:0:2}/${id:2}

scripts/process-debuginfo.in

@@ -62,7 +62,7 @@ for pat in ${RPM_BRP_STRIP_NONE-}; do
 done
 
 timestamp=$(date --iso-8601=ns --reference="$f")
-@RPMCONFIGDIR@/debugedit -b "$RPM_BUILD_DIR" -d /usr/src/debug -l .tmp/src.$$ "$f"
+debugedit -b "$RPM_BUILD_DIR" -d /usr/src/debug -l .tmp/src.$$ "$f"
 if [ ! -s .tmp/src.$$ ] && [ -x /usr/bin/eu-elfcompress ]; then
 	# debugedit has failed to extract sources list, possibly
 	# due to ELF compression - uncompress and try again.
@@ -78,7 +78,7 @@ if [ ! -s .tmp/src.$$ ] && [ -x /usr/bin/eu-elfcompress ]; then
 	rm .tmp/sections.$$
 	if [ -n "$zmode" ]; then
 		LD_ORIGIN_PATH=/usr/bin eu-elfcompress --type=none "$f"
-		@RPMCONFIGDIR@/debugedit -b "$RPM_BUILD_DIR" -d /usr/src/debug -l .tmp/src.$$ "$f"
+		debugedit -b "$RPM_BUILD_DIR" -d /usr/src/debug -l .tmp/src.$$ "$f"
 		LD_ORIGIN_PATH=/usr/bin eu-elfcompress --type=$zmode "$f"
 	fi
 fi