--- bash.spec.old       2014-09-25 05:22:12 +0400
+++ bash.spec   2014-09-25 14:55:16 +0400
@@ -178,8 +178,8 @@
 install -pm644 doc/*.html %buildroot%docdir/html/
 install -pm644 doc/*.ps %buildroot%docdir/ps/
 install -pm644 doc/*.txt %buildroot%docdir/txt/
-find %buildroot%docdir/{[A-Z],txt/}* -type f -size +8k -print0 |
-       xargs -r0 bzip2 -9 --
+find %buildroot%docdir{,/txt}/* -type f -maxdepth 0 -size +8k \
+       -execdir bzip2 -9 -- '{}' ';'
 gzip -9nf %buildroot%docdir/ps/*.ps
 cp -a examples %buildroot%docdir/
 find %buildroot%docdir/examples/ -type f -name 'Makefile*' -delete