Don't remove unknown files in cache cleaning code
tree77ef45e534577248f5985e068d22382ad33ad20b
-rw-r--r-- 18 .gitattributes
-rw-r--r-- 230 .gitignore
-rw-r--r-- 1823 .mailmap
drwxr-xr-x - .tx
-rw-r--r-- 50 AUTHORS
-rw-r--r-- 17987 COPYING
-rw-r--r-- 4143 HACKING
-rw-r--r-- 9559 INSTALL
-rw-r--r-- 1393 Makefile.am
-rw-r--r-- 56609 NEWS
-rw-r--r-- 17854 README
-rw-r--r-- 2131 TRANSLATORS
-rw-r--r-- 4824 acinclude.m4
-rwxr-xr-x 901 autoclean.sh
-rwxr-xr-x 78 autogen.sh
-rwxr-xr-x 45044 config.guess
-rwxr-xr-x 16164 config.rpath
-rwxr-xr-x 35070 config.sub
-rw-r--r-- 12303 configure.ac
drwxr-xr-x - contrib
-rwxr-xr-x 18615 depcomp
drwxr-xr-x - doc
drwxr-xr-x - etc
-rwxr-xr-x 13781 install-sh
drwxr-xr-x - lib
-rw-r--r-- 283858 ltmain.sh
drwxr-xr-x - m4
-rwxr-xr-x 11419 missing
-rwxr-xr-x 3538 mkinstalldirs
drwxr-xr-x - proto
drwxr-xr-x - scripts
drwxr-xr-x - src
drwxr-xr-x - test
-rw-r--r-- 2003 valgrind.supp