Rename: primitives/sr-std -> primitives/sp-std (#4327)

* primitives/sr-std -> primitives/std

* fix

* fix conflict

* rstd -> sp-std

* git mv

* fix review

* fix merge

substrate/primitives/consensus/babe/Cargo.toml

@@ -8,7 +8,7 @@ edition = "2018"
 [dependencies]
 app-crypto = { package = "sc-application-crypto", path = "../../application-crypto", default-features = false }
 codec = { package = "parity-scale-codec", version = "1.0.0", default-features = false }
-rstd = { package = "sp-std", path = "../../sr-std", default-features = false }
+sp-std = { path = "../../std", default-features = false }
 schnorrkel = { version = "0.8.5", features = ["preaudit_deprecated"], optional = true }
 sp-api = { path = "../../sr-api", default-features = false }
 sp-consensus = { path = "../common", optional = true }
@@ -21,7 +21,7 @@ default = ["std"]
 std = [
 	"app-crypto/std",
 	"codec/std",
-	"rstd/std",
+	"sp-std/std",
 	"schnorrkel",
 	"sp-api/std",
 	"sp-consensus",

substrate/primitives/consensus/babe/src/digest.rs

@@ -33,7 +33,7 @@ use schnorrkel::{
 	SignatureError, errors::MultiSignatureStage,
 	vrf::{VRFProof, VRFOutput, VRF_OUTPUT_LENGTH, VRF_PROOF_LENGTH}
 };
-use rstd::vec::Vec;
+use sp_std::vec::Vec;
 
 
 /// A BABE pre-runtime digest. This contains all data required to validate a

substrate/primitives/consensus/babe/src/inherents.rs

@@ -23,7 +23,7 @@ use sp_timestamp::TimestampInherentData;
 
 #[cfg(feature = "std")]
 use codec::Decode;
-use rstd::result::Result;
+use sp_std::result::Result;
 
 /// The BABE inherent identifier.
 pub const INHERENT_IDENTIFIER: InherentIdentifier = *b"babeslot";

substrate/primitives/consensus/babe/src/lib.rs

@@ -23,7 +23,7 @@ mod digest;
 pub mod inherents;
 
 use codec::{Encode, Decode};
-use rstd::vec::Vec;
+use sp_std::vec::Vec;
 use sp_runtime::{ConsensusEngineId, RuntimeDebug};
 
 #[cfg(feature = "std")]