Prepare for go 1.14

[sykesm]

Before we can move to go 1.14, we need to make sure things work with go 1.14...

• bump golang.org/x/crypto/sha3 to pick up checkptr fix
• soften assertion in error string to handle quotes present in go 1.14
  error that is not present in go 1.13

[lindluni]

Thanks Matt, LGTM

[lindluni]

I guess 1.14 doesn't fix pre-existing flakes

[sykesm]

I guess 1.14 doesn't fix pre-existing flakes

Nope. And I just hit another one (FAB-17376).

[yacovm]

• bump golang.org/x/crypto/sha3 to pick up checkptr fix

Just wondering why is this necessary? We don't use sha3 in Fabric.

[sykesm]

• bump golang.org/x/crypto/sha3 to pick up checkptr fix

Just wondering why is this necessary? We don't use sha3 in Fabric.

fatal error: checkptr: unsafe pointer conversion

goroutine 232 [running]:
runtime.throw(0x15e5045, 0x23)
	/usr/local/Cellar/go/1.14/libexec/src/runtime/panic.go:1112 +0x72 fp=0xc00073b920 sp=0xc00073b8f0 pc=0x1073402
runtime.checkptrAlignment(0xc0007642a9, 0x1554780, 0x1)
	/usr/local/Cellar/go/1.14/libexec/src/runtime/checkptr.go:13 +0xd0 fp=0xc00073b950 sp=0xc00073b920 pc=0x1045790
github.com/hyperledger/fabric/vendor/golang.org/x/crypto/sha3.xorInUnaligned(0xc0007641c0, 0xc0007642a9, 0x88, 0xa8)
	/Users/sykesm/workspace/fabric/src/github.com/hyperledger/fabric/vendor/golang.org/x/crypto/sha3/xor_unaligned.go:13 +0x60 fp=0xc00073b988 sp=0xc00073b950 pc=0x12650c0
github.com/hyperledger/fabric/vendor/golang.org/x/crypto/sha3.(*state).permute(0xc0007641c0)
	/Users/sykesm/workspace/fabric/src/github.com/hyperledger/fabric/vendor/golang.org/x/crypto/sha3/sha3.go:84 +0x1d3 fp=0xc00073b9d8 sp=0xc00073b988 pc=0x1263cc3
github.com/hyperledger/fabric/vendor/golang.org/x/crypto/sha3.(*state).padAndPermute(0xc0007641c0, 0xc000054806)
	/Users/sykesm/workspace/fabric/src/github.com/hyperledger/fabric/vendor/golang.org/x/crypto/sha3/sha3.go:117 +0x347 fp=0xc00073ba80 sp=0xc00073b9d8 pc=0x1264087
github.com/hyperledger/fabric/vendor/golang.org/x/crypto/sha3.(*state).Read(0xc0007641c0, 0xc000734340, 0x20, 0x20, 0xb, 0xb, 0x1)
	/Users/sykesm/workspace/fabric/src/github.com/hyperledger/fabric/vendor/golang.org/x/crypto/sha3/sha3.go:163 +0x2e0 fp=0xc00073bb10 sp=0xc00073ba80 pc=0x1264b50
github.com/hyperledger/fabric/vendor/golang.org/x/crypto/sha3.(*state).Sum(0xc000764000, 0x0, 0x0, 0x0, 0xb, 0x0, 0x0)
	/Users/sykesm/workspace/fabric/src/github.com/hyperledger/fabric/vendor/golang.org/x/crypto/sha3/sha3.go:190 +0x233 fp=0xc00073bba8 sp=0xc00073bb10 pc=0x1264db3
github.com/hyperledger/fabric/bccsp/sw.(*hasher).Hash(0xc0000100e8, 0xc000200410, 0xb, 0xb, 0x16798e0, 0x1999f68, 0xc000200410, 0x10, 0x100000000000000, 0x0, ...)
	/Users/sykesm/workspace/fabric/src/github.com/hyperledger/fabric/bccsp/sw/hash.go:32 +0xca fp=0xc00073bc18 sp=0xc00073bba8 pc=0x14e2cca
github.com/hyperledger/fabric/bccsp/sw.(*CSP).Hash(0xc0000201e0, 0xc000200410, 0xb, 0xb, 0x16798e0, 0x1999f68, 0x0, 0xc00022e0c0, 0xc0004c61c0, 0xc000703568, ...)
	/Users/sykesm/workspace/fabric/src/github.com/hyperledger/fabric/bccsp/sw/impl.go:188 +0x1f9 fp=0xc00073bd10 sp=0xc00073bc18 pc=0x14e4f99
github.com/hyperledger/fabric/bccsp/sw.TestECDSALowS(0xc000465320)
	/Users/sykesm/workspace/fabric/src/github.com/hyperledger/fabric/bccsp/sw/impl_test.go:982 +0x275 fp=0xc00073bed0 sp=0xc00073bd10 pc=0x150b2b5
testing.tRunner(0xc000465320, 0x15f6518)
	/usr/local/Cellar/go/1.14/libexec/src/testing/testing.go:992 +0x1ec fp=0xc00073bfd0 sp=0xc00073bed0 pc=0x118f72c
runtime.goexit()
	/usr/local/Cellar/go/1.14/libexec/src/runtime/asm_amd64.s:1373 +0x1 fp=0xc00073bfd8 sp=0xc00073bfd0 pc=0x10a6cf1
created by testing.(*T).Run
	/usr/local/Cellar/go/1.14/libexec/src/testing/testing.go:1043 +0x661