Fix #19, Change full word help option '-help' to '--help'

[martintc]

Describe the contribution
Fix #19

Change the command line argument to '--help' instead of '-help' as per issue #19

Testing performed
Compiled with GCC-9 and clang, no compile errors and behavior remains the same.

Expected behavior changes
Only behavior change is the program expects --help instead of -help

System(s) tested on

• Hardware: Macbook Pro 2015
• OS: Mac OS 10.15.7
• OS: Ubuntu 20.04 (in vm)

Contributor Info - All information REQUIRED for consideration of pull request
Todd Martin, personal

[martintc]

For the CLA, I just fill out the form and email it to the email address listed at the bottom? First code commit to NASA's github.

[astrogeco]

Hi @martintc thank you for your contribution. Could you sign and email the appropriate Contributor License agreement?

• Corporate: https://github.com/nasa/cFE/blob/main/docs/GSC_18128_Corp_CLA_form_1219.pdf
• Individual: https://github.com/nasa/cFE/blob/main/docs/GSC_18128_Ind_CLA_form_1219.pdf

email it to: [email protected] and copy [email protected]

Thanks

[martintc]

@astrogeco Signed license agreement has been sent to the email addresses as requested.

[astrogeco]

@astrogeco Signed license agreement has been sent to the email addresses as requested.

Got it, really appreciate it!

[astrogeco]

One more ask, could you amend your commit message to read as follows?

Fix #19, Change full word help option '-help' to '--help'

[martintc]

Made the change, hope that is the change that was requested