[Freeciv-Dev] (PR#12730) packets code has memory problems

["Per I. Mathisen" <per@xxxxxxxxxxx>]

<URL: http://bugs.freeciv.org/Ticket/Display.html?id=12730 >

Valgrind sayz:

==18666== Conditional jump or move depends on uninitialised value(s)
==18666==    at 0xB7918B: (within /usr/lib/libz.so.1.2.1.2)
==18666==    by 0xB7A061: (within /usr/lib/libz.so.1.2.1.2)
==18666==    by 0xB78505: deflate (in /usr/lib/libz.so.1.2.1.2)
==18666==    by 0xB7681A: compress2 (in /usr/lib/libz.so.1.2.1.2)
==18666==    by 0x80B254D: send_packet_data (packets.c:165)
==18666==    by 0x80B42FB: send_packet_thaw_hint (packets_gen.c:981)
==18666==    by 0x80B43A9: lsend_packet_thaw_hint (packets_gen.c:1044)
==18666==    by 0x8084170: send_rulesets (ruleset.c:3187)

==18662== Conditional jump or move depends on uninitialised value(s)
==18662==    at 0xB791D4: (within /usr/lib/libz.so.1.2.1.2)
==18662==    by 0xB7A061: (within /usr/lib/libz.so.1.2.1.2)
==18662==    by 0xB78505: deflate (in /usr/lib/libz.so.1.2.1.2)
==18662==    by 0xB7681A: compress2 (in /usr/lib/libz.so.1.2.1.2)
==18662==    by 0x80C2DFD: send_packet_data (packets.c:165)
==18662==    by 0x80C4BAB: send_packet_thaw_hint (packets_gen.c:981)
==18662==    by 0x80C4C59: lsend_packet_thaw_hint (packets_gen.c:1044)
==18662==    by 0x805171A: main_loop (srv_main.c:1562)

  - Per