Thank you for opening this bug and helping make Ubuntu better. First of all, please use 'ubuntu-bug coreutils' next time, so that a minimum of information can be automatically collected (like, for example, package version, coreutils version).
I can confirm this on coreutils 8.20 (Raring, version 8.20-3ubuntu5):
[cerdea-aws]cerdea@xango3:/build/buildd/coreutils$ seq --version
seq (GNU coreutils) 8.20
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Ulrich Drepper.
[cerdea-aws]cerdea@xango3:/build/buildd/coreutils$ seq -s, 5
1
2,3,4,5,[cerdea-aws]cerdea@xango3:/build/buildd/coreutils$
But I cannot see it on a more up-to-date coreutils:
[cerdea-aws]cerdea@xango3:/build/buildd/coreutils$ src/seq --version
seq (GNU coreutils) 8.21.20-2c2d0
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Ulrich Drepper.
[cerdea-aws]cerdea@xango3:/build/buildd/coreutils$ src/seq -s, 5
1,2,3,4,5
[cerdea-aws]cerdea@xango3:/build/buildd/coreutils$
Thank you for opening this bug and helping make Ubuntu better. First of all, please use 'ubuntu-bug coreutils' next time, so that a minimum of information can be automatically collected (like, for example, package version, coreutils version).
I can confirm this on coreutils 8.20 (Raring, version 8.20-3ubuntu5):
[cerdea- aws]cerdea@ xango3: /build/ buildd/ coreutils$ seq --version gnu.org/ licenses/ gpl.html>.
seq (GNU coreutils) 8.20
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Ulrich Drepper. aws]cerdea@ xango3: /build/ buildd/ coreutils$ seq -s, 5 [cerdea- aws]cerdea@ xango3: /build/ buildd/ coreutils$
[cerdea-
1
2,3,4,5,
But I cannot see it on a more up-to-date coreutils:
[cerdea- aws]cerdea@ xango3: /build/ buildd/ coreutils$ src/seq --version gnu.org/ licenses/ gpl.html>.
seq (GNU coreutils) 8.21.20-2c2d0
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Ulrich Drepper. aws]cerdea@ xango3: /build/ buildd/ coreutils$ src/seq -s, 5 aws]cerdea@ xango3: /build/ buildd/ coreutils$
[cerdea-
1,2,3,4,5
[cerdea-
So I will check as soon as possible for the fix.