Pass of 'go mod tidy'

Author: cmaglie

client_example/go.sum

@@ -116,6 +116,8 @@ github.com/leonelquinteros/gotext v1.4.0/go.mod h1:yZGXREmoGTtBvZHNcc+Yfug49G/2s
 github.com/lithammer/fuzzysearch v1.1.1/go.mod h1:H2bng+w5gsR7NlfIJM8ElGZI0sX6C/9uzGqicVXGU6c=
 github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
 github.com/magiconair/properties v1.8.1/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
+github.com/marcinbor85/gohex v0.0.0-20210308104911-55fb1c624d84 h1:hyAgCuG5nqTMDeUD8KZs7HSPs6KprPgPP8QmGV8nyvk=
+github.com/marcinbor85/gohex v0.0.0-20210308104911-55fb1c624d84/go.mod h1:Pb6XcsXyropB9LNHhnqaknG/vEwYztLkQzVCHv8sQ3M=
 github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
 github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=