Overrun warning false alarm for CFE_MSG_Message_t

[ArielSAdamsNASA]

Describe the bug
Overrunning struct type CFE_MSG_Message_t of 16 bytes by passing it to a function which accesses it at byte offset 19 using argument 20UL.

Expected behavior
Fix overrun

Code snips

sample_app/fsw/src/sample_app.c

Lines 166 to 167 in d009197

	CFE_MSG_Init(&SAMPLE_APP_Data.HkTlm.TlmHeader.Msg, CFE_SB_ValueToMsgId(SAMPLE_APP_HK_TLM_MID),
	sizeof(SAMPLE_APP_Data.HkTlm));

System observed on:
Coverity: https://scan.coverity.com/projects/arielsadamsnasa-cfs-jsf-rules?tab=overview

Reporter Info
Ariel Adams, ASRC Federal

[skliper]

Not a real overrun since there is sufficient memory allocated. Should still clean up to squash warning, switching to enhancement. Related to nasa/cFE#1992.