fping 4.3

New features

• Linux unprivileged ping support (#173, thanks @tycho)
• Add SIGQUIT summary support similar to ping (#185, thanks @laddp)

Bugfixes and other changes

• Corrected long option name of -s to --stats (#148, thanks @wopfel)
• Do not fail if using fping6 with -6 flag (#149, thanks @stromnet)
• Fail if interface binding (-I) does not work (#162, thanks @kbucheli)
• Fix using option -4 when fping is compiled IPv4-only (#154, thanks @pbhenson)
• Add Azure pipeline test build (#153 and #170, thanks @gsnw)
• GCC 10 compatibility fixes (#167 and #168, thanks @cranderson)
• Macos build fix (#174, thanks @tycho)
• Fix xmt stats in Netdata output (#172, thanks @vlvkobal)
• Only increase num_alive if response is not a duplicate (#151, thanks @brownowski)
• Use line buffering for stdout (#179, thanks @bg6cq)