doxygen warning for \"usersguide\"

[linayurkova]

doxygen errors warning

doxygen errors for "usersguide" must be fixed before submitting a pull request

defined by CI
https://travis-ci.com/nasa/cFS/jobs/278425144

Code snips
$ make usersguide > make_usersguide_stdout.txt 2> make_usersguide_stderr.txt The command "make usersguide > make_usersguide_stdout.txt 2> make_usersguide_stderr.txt" exited with 0. $ if [[ -s make_usersguide_stderr.txt ]]; then echo "You must fix doxygen errors for \"usersguide\" before submitting a pull request" echo "" cat make_usersguide_stderr.txt exit -1

matrix:
AMD64
Compiler: gcc C
BUILDTYPE=debug OMIT_DEPRECATED=false

Additional context
warning: overriding recipe for target 'usersguide'
warning: ignoring old recipe for target 'usersguide'

Reporter Info
Anhelina Yurkova NASA GODDARD / ASRC SES II