Log Message:
gammu: Update comms/gammu to 1.39.0

pkgsrc changes:
 - Indent a DEPENDS (suggested by `pkglint -Wall')

Changes:
1.39.0
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 * Fixed answering call in AT module.
 * Improved support for Huawei E392 and E3131.
 * Fixed compatibility of binaries with Windows XP and 2003.
 * Improved support for ZTE MF667.
 * Updated list of GSM networks and countries.