Manpages of gccgo-10 in Debian experimental

• arm-linux-gnueabihf-go-10(1)
• arm-linux-gnueabihf-gofmt-10(1)
• go-10(1)
• gofmt-10(1)
• i686-linux-gnu-go-10(1)
• i686-linux-gnu-gofmt-10(1)
• powerpc64le-linux-gnu-go-10(1)
• powerpc64le-linux-gnu-gofmt-10(1)
• x86_64-linux-gnu-go-10(1)
• x86_64-linux-gnu-gofmt-10(1)