I believe the "cancel" word should be changed to "Cancel" in following two messages:

#: ../src/option.c:613
#, no-c-format
msgid "Kill parent process if cancel button is pressed"
msgstr ""

#: ../src/option.c:623
#, no-c-format
msgid "Hide cancel button"
msgstr ""


Both messages should be uniform with following message:

#: ../src/option.c:665
msgid "Sets the label of the Cancel button"
msgstr ""

Thanks.