stdio_pclose: return -errno on error (v3)
This is what qemu_fclose() expects. Changes v1 -> v2: - On success, keep returning pclose() return value, instead of always 0. Changes v2 -> v3: - Add braces on if statements to match coding style Signed-off-by: NEduardo Habkost <ehabkost@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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