Warn if we include a language without including all its countries.

We're currently missing a lot of countries for various languages:

Change-Id: Ic0c656a31514916e7a3fb0baeb07129505d10bbd
warning: language ar is missing country 001
warning: language ar is missing country DJ
warning: language ar is missing country EH
warning: language ar is missing country ER
warning: language ar is missing country IL
warning: language ar is missing country KM
warning: language ar is missing country MR
warning: language ar is missing country PS
warning: language ar is missing country SO
warning: language ar is missing country TD
warning: language ca is missing country AD
warning: language el is missing country CY
warning: language es is missing country EA
warning: language es is missing country GQ
warning: language es is missing country IC
warning: language es is missing country PH
warning: language fr is missing country BF
warning: language fr is missing country BI
warning: language fr is missing country BJ
warning: language fr is missing country BL
warning: language fr is missing country CD
warning: language fr is missing country CF
warning: language fr is missing country CG
warning: language fr is missing country CI
warning: language fr is missing country CM
warning: language fr is missing country DJ
warning: language fr is missing country DZ
warning: language fr is missing country GA
warning: language fr is missing country GF
warning: language fr is missing country GN
warning: language fr is missing country GP
warning: language fr is missing country GQ
warning: language fr is missing country HT
warning: language fr is missing country KM
warning: language fr is missing country MA
warning: language fr is missing country MF
warning: language fr is missing country MG
warning: language fr is missing country ML
warning: language fr is missing country MQ
warning: language fr is missing country MR
warning: language fr is missing country MU
warning: language fr is missing country NC
warning: language fr is missing country NE
warning: language fr is missing country PF
warning: language fr is missing country RE
warning: language fr is missing country RW
warning: language fr is missing country SC
warning: language fr is missing country SN
warning: language fr is missing country SY
warning: language fr is missing country TD
warning: language fr is missing country TG
warning: language fr is missing country TN
warning: language fr is missing country VU
warning: language fr is missing country YT
warning: language hr is missing country BA
warning: language it is missing country SM
warning: language ms is missing country SG
warning: language nl is missing country AW
warning: language nl is missing country CW
warning: language nl is missing country SR
warning: language nl is missing country SX
warning: language ps is missing country AF
warning: language ro is missing country MD
warning: language ru is missing country BY
warning: language ru is missing country KG
warning: language ru is missing country KZ
warning: language ru is missing country MD
warning: language sv is missing country AX
warning: language sw is missing country UG
warning: language tr is missing country CY
1 file changed