-Removed the repeated log message from pb2nc

• SonarQube:
  • met/src/basic/vx_util/ascii_table.cc: initializae left and right
  • met/src/libcode/vx_gis/dbf_file.cc: calls API instead of memory setting
  • met/src/libcode/vx_nc_obs/nc_obs_util.cc: do net write to netcdf if empty data
  • met/src/tools/other/madis2nc/madis2nc.cc: make sure the level from the variable is less than dimension maxLevels
  • met/src/tools/other/mode_graphics/cgraph_main.cc: removed not used/unreachable code

Expected Differences

• Do these changes introduce new tools, command line arguments, or configuration file options? [No]
  
  If yes, please describe:
  

• Do these changes modify the structure of existing or add new output data types (e.g. statistic line types or NetCDF variables)? [No]
  
  If yes, please describe:
  

Pull Request Testing

• Describe testing already performed for these changes:
  

Set MET_BASE environment variable

export MET_BASE =/d1/personal/hsoh/git/features/feature_2015_pb2nc_debug_message/MET/met/share/met

export MASK_GRID=''
export MASK_POLY=''
export QUALITY_MARK_THRESH='2'
export STATION_ID=''
/d1/personal/hsoh/git/features/feature_2015_pb2nc_debug_message/MET/met/bin/pb2nc \
/d1/projects/MET/MET_test_data/unit_test/obs_data/prepbufr/nam.20210311.t00z.prepbufr.tm00 \
nam.20210311.t00z.prepbufr.tm00.pbl.nc \
/d1/personal/hsoh/git/features/feature_2015_pb2nc_debug_message/MET/test/config/PB2NCConfig_pbl \
-v 3 -log pb2nc_log_new.log

Check the following debug messages are not repeated

DEBUG 3:
DEBUG 3: process_pbfile() -> Skip the derived variables because of not requested (0).
DEBUG 3:

• Recommend testing for the reviewer(s) to perform, including the location of input datasets, and any additional instructions:
  

export MASK_GRID=''
export MASK_POLY=''
export QUALITY_MARK_THRESH='2'
export STATION_ID=''
/d1/personal/hsoh/git/pull_request/MET_feature_2015_pb2nc_debug_message/met/bin/pb2nc \
/d1/projects/MET/MET_test_data/unit_test/obs_data/prepbufr/nam.20210311.t00z.prepbufr.tm00 \
nam.20210311.t00z.prepbufr.tm00.pbl.nc \
/d1/personal/hsoh/git/pull_request/MET_feature_2015_pb2nc_debug_message/test/config/PB2NCConfig_pbl \
-v 3 -log pb2nc_log_new.log

• Do these changes include sufficient documentation updates, ensuring that no errors or warnings exist in the build of the documentation? [No]

• Do these changes include sufficient testing updates? [YNo]

Only the log messages are affected.

• Will this PR result in changes to the test suite? [No]
  
  If yes, describe the new output and/or changes to the existing output:
  

• Please complete this pull request review by [Fill in date].
  

Pull Request Checklist

See the METplus Workflow for details.

• Complete the PR definition above.
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  Select: Milestone as the version that will include these changes
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