Bug 10177 - Whitespace is accepted within the password but leading and trailing space...

Bug 10177 - Whitespace is accepted within the password but leading and trailing spaces are not.

Test plan:
1: Go to your patron
2: Go to change username and/or password.
3: Change password to something with spaces in the middle. Notice it is invalid.
4: Apply this patch.
5: Change password again using spaces in the middle. Notice it is accepted.
6: Change password with leading and/or trailing spaces, notice they are not accepted.

Applied bothe patches. Followed test plan. Patch behaves as expected.
Signed-off-by: Marc Véron <veron@veron.ch>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>