Michael Scherer 0e69dfbb56 Do not fail if vFile:fstat is not implemented on the remote side
See handle_vFile in ./gdb/gdbserver/hostio.c in gdb git, and the documentation
https://sourceware.org/gdb/onlinedocs/gdb/Host-I_002fO-Packets.html#Host-I_002fO-Packets

         An empty response indicates that this operation is not recognized.

vFile:fstat is not supported by gdb 7.6.1, shipped on RHEL 7, for example.
2017-04-21 10:08:18 +02:00
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