style(PE_Oudin): add a capital letter to the expression "Julian day"

Refs #134
2 jobs for 134-allow-the-use-of-inconsistent-chronicles-in-pe_oudin in 8 minutes and 10 seconds (queued for 23 minutes and 50 seconds)
Status Name Job ID Coverage
  Check
passed check_as_cran_patched #192305

00:02:54

passed check_not_cran_patched #192304

00:05:15