EUC-JPは大文字か小文字か

　IANAによると、

Name: Extended_UNIX_Code_Packed_Format_for_Japanese
MIBenum: 18
Source: Standardized by OSF, UNIX International, and UNIX Systems
　Laboratories Pacific. Uses ISO 2022 rules to select
　　code set 0: US-ASCII (a single 7-bit byte set)
　　code set 1: JIS X0208-1990 (a double 8-bit byte set)
　　　　　restricted to A0-FF in both bytes
　　code set 2: Half Width Katakana (a single 7-bit byte set)
　　　　　requiring SS2 as the character prefix
　　code set 3: JIS X0212-1990 (a double 7-bit byte set)
　　　　　restricted to A0-FF in both bytes
　　　　　requiring SS3 as the character prefix
Alias: csEUCPkdFmtJapanese
Alias: EUC-JP (preferred MIME name)

とのことです。
　どうやらEUC-JP(大文字)が正解っぽいです(汗;