**Steps to reproduce**:
Run
`python pwb.py checkimages -limit:500 -commons -duplicatesreport -start:C` or
`python pwb.py checkimages -limit:500 -commons -duplicatesreport -start` and in dialog where you should type name of page from which you should start type some letter
**Expected behaviour**
If I indicate to script should start from **C** it have to start from pages which starts with letter **C**
**Actual behaviour**
It starts from zero.
**Output**
**Run of command**
```Zoran@Zoran-PC MINGW32 ~/Desktop/development/pywiki ((3381b74e...))
$ python pwb.py checkimages -limit:500 -commons -duplicatesreport -start
From which page do you want to start? C
Loading the allowed licenses...
You've set wrongly your settings, please take a look to the relative page. (run without them)
>> No additional settings found! <<
Checking if [[$RCO89PK.jpg]] is on commons...
Execution time: 12 seconds
Zoran@Zoran-PC MINGW32 ~/Desktop/development/pywiki ((3381b74e...))
$ python pwb.py checkimages -limit:500 -commons -duplicatesreport -start:C
Loading the allowed licenses...
You've set wrongly your settings, please take a look to the relative page. (run without them)
>> No additional settings found! <<
Checking if [[$RCO89PK.jpg]] is on commons...
Execution time: 5 seconds
```
**Version**
```$ python pwb.py version
Pywikibot: [ssh] pywikibot-core (da9cc92, g10803, 2019/03/03, 12:38:58, ok)
Release version: 3.1.dev0
requests version: 2.21.0
cacerts: C:\Users\Zoran\AppData\Local\Programs\Python\Python37-32\lib\site-packages\certifi\cacert.pem
certificate test: ok
Python: 3.7.2 (tags/v3.7.2:9a3ffc0492, Dec 23 2018, 22:20:52) [MSC v.1916 32 bit (Intel)]
PYWIKIBOT_DIR: Not set
PYWIKIBOT_DIR_PWB:
PYWIKIBOT_NO_USER_CONFIG: Not set
Config base dir: C:\Users\Zoran\Desktop\development\pywiki
Usernames for family "wikipedia":
sr: ZoranBot (no sysop configured)
Usernames for family "wiktionary":
sr: Zoranzoki21 (also sysop)
```