movie: Fix the bug that the gmt.conf file in the main script is not read correctly #8436
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See #8209 (comment) for detailed explanations. This PR makes the change so that we always copy
gmt.confto the directory of themovie_master.shscript before callinggmt begin.Closes #8209.
@Esteban82 Please double-check to make sure that all work well.