Fix all remaining issues of [BZ #15260]

	[BZ #15260]
	* localedata/locales/doi_IN (LC_MESSAGES): Match only for the
	first letters of yesstr and nostr in yesexpr and noexpr,
	not for the full words.
	* localedata/locales/hne_IN (LC_MESSAGES): Likewise.
	* localedata/locales/kok_IN (LC_MESSAGES): Likewise.
	* localedata/locales/mr_IN (LC_MESSAGES): Likewise.
	* localedata/locales/sat_IN (LC_MESSAGES): Likewise.
	* localedata/locales/km_KH (LC_MESSAGES): Match also for the
	first letters of yesstr and nostr in yesexpr and noexpr,
	until now only English was matched in yesexpr and noexpr.
	* localedata/locales/tl_PH (LC_MESSAGES): Use “copy "fil_PH"”
	instead of “copy "en_US"”. CLDR has yesstr and nostr data for
	fil but not for tl. As tl and fil are very similar, using fil
	is probably better than using English.