Feature request: Check case of initial letter

[nafmo]

I noticed a few strings in my translation where I had started with an uppercase letter, where the original had a lowercase one. This can be valid in some cases and some languages, but an extra flag to check for this could be useful to run every now and then.

[jiangxin]

Can you give some examples?

[nafmo]

I had a few:

msgid "unable to add additional attribute"
msgstr "Kunde inte lägga till ytterligare attribut"

msgid "could not generate todo list"
msgstr "Kunde inte skapa attgöra-lista"

msgid "unable to open commit-graph chain file"
msgstr "Kunde inte öppna incheckningsgrafkedjefilen"

(there is a pattern here…)