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$ rm -rf d
$ mkdir -p d/patches
$ cd d
$ cat > a
< a
< b
< c
$ quilt new test.diff
> Patch patches/test.diff is now on top
$ quilt add a
> File a added to patch patches/test.diff
$ cat > a
< a
< b
< c
$ quilt refresh
> Warning: trailing whitespace in lines 1,3 of a
> Refreshed patch patches/test.diff
$ grep '[ \t]$' patches/test.diff
> +a
> +c
$ quilt refresh -U0
> Warning: trailing whitespace in lines 1,3 of a
> Refreshed patch patches/test.diff
$ quilt refresh --strip-trailing-whitespace
> Removing trailing whitespace from lines 1,3 of a
> Refreshed patch patches/test.diff
$ grep '[ \t]$' patches/test.diff
$ quilt pop -q
> Removing patch patches/test.diff
> No patches applied
$ cat > a
< a
< b
< c
$ quilt new test2.diff
> Patch patches/test2.diff is now on top
$ quilt add a
> File a added to patch patches/test2.diff
$ cat > a
< a
< b
< c
$ quilt refresh -c
> Warning: trailing whitespace in lines 1,3 of a
> Refreshed patch patches/test2.diff
$ grep '[ \t]$' patches/test2.diff
> ! a
> ! c
$ quilt refresh -C0
> Warning: trailing whitespace in lines 1,3 of a
> Refreshed patch patches/test2.diff
$ quilt refresh -c --strip-trailing-whitespace
> Removing trailing whitespace from lines 1,3 of a
> Refreshed patch patches/test2.diff
$ grep '[ \t]$' patches/test2.diff
$ quilt pop -q
> Removing patch patches/test2.diff
> No patches applied
$ cd ..
$ rm -rf d
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