brp-debuginfo: fix handling of packages containing ELF relocatable objects

Do not try to process ELF relocatable objects that are not kernel
modules, this fixes the following regression:

/usr/lib/rpm/debugedit: ./usr/lib64/gcc/x86_64-alt-linux/9/crtfastmath.o: DWARF version 0 unhandled
objdump: ./usr/lib64/gcc/x86_64-alt-linux/9/crtfastmath.o: bad value
verify-elf: ERROR: ./usr/lib64/gcc/x86_64-alt-linux/9/crtfastmath.o: objdump failed

Fixes: 7aa048df38 ("Generate debuginfo for kernel packages")

scripts/brp-debuginfo.in

@@ -27,9 +27,10 @@ prune_tests="$(printf %s "$prune_paths" |
 find . '(' -path './.*' $prune_tests ')' -prune -o -type f -print |sort |
 file -NF$'\t' -f - |
 sed -n -e '/ ELF .* shared object, no machine, /d' \
-       -e 's/\t.* ELF .* \(executable\|shared object\|relocatable\), .*, not stripped.*//p' \
-       -e 's/^\(\.\/lib\/modules\/.*\.ko\.[gx]z\)\t.* \(gzip\|xz\) compressed data.*/\1/p' \
-       -e 's/^\(\.\/boot\/vmlinuz-.*\)\t.*/\1/p' |
+       -e 's/\t.* ELF .* \(executable\|shared object\), .*, not stripped.*//p' \
+       -e 's/^\(\.\/lib\/modules\/[^[:space:]]\+\.o\)\t.* ELF .* relocatable, .*, not stripped.*/\1/p' \
+       -e 's/^\(\.\/lib\/modules\/[^[:space:]]\+\.ko\.[gx]z\)\t.* \(gzip\|xz\) compressed data.*/\1/p' \
+       -e 's/^\(\.\/boot\/vmlinuz-[^[:space:]]\+\)\t.*/\1/p' |
 xargs -r --delimiter='\n' stat -c '%h %i %n' >.tmp/flist
 
 # Filter out what will be hard-linked later and process the rest.