Reformat imports to a consistent style for imports

rustfmt.toml configuration:
  imports_granularity = "One"
  group_imports = "One"

sdk/program/src/sysvar/clock.rs

@@ -1,7 +1,6 @@
 //! This account contains the clock slot, epoch, and leader_schedule_epoch
 //!
 pub use crate::clock::Clock;
-
 use crate::{impl_sysvar_get, program_error::ProgramError, sysvar::Sysvar};
 
 crate::declare_sysvar_id!("SysvarC1ock11111111111111111111111111111111", Clock);

sdk/program/src/sysvar/epoch_schedule.rs

@@ -1,7 +1,6 @@
 //! This account contains the current cluster rent
 //!
 pub use crate::epoch_schedule::EpochSchedule;
-
 use crate::{impl_sysvar_get, program_error::ProgramError, sysvar::Sysvar};
 
 crate::declare_sysvar_id!("SysvarEpochSchedu1e111111111111111111111111", EpochSchedule);

sdk/program/src/sysvar/instructions.rs

@@ -118,9 +118,11 @@ pub fn get_instruction_relative(
 
 #[cfg(test)]
 mod tests {
-    use super::*;
-    use crate::{instruction::AccountMeta, message::Message, pubkey::Pubkey};
-    use std::convert::TryFrom;
+    use {
+        super::*,
+        crate::{instruction::AccountMeta, message::Message, pubkey::Pubkey},
+        std::convert::TryFrom,
+    };
 
     #[test]
     fn test_load_store_instruction() {

sdk/program/src/sysvar/mod.rs

@@ -1,7 +1,9 @@
 //! named accounts for synthesized data accounts for bank state, etc.
 //!
-use crate::{account_info::AccountInfo, program_error::ProgramError, pubkey::Pubkey};
-use lazy_static::lazy_static;
+use {
+    crate::{account_info::AccountInfo, program_error::ProgramError, pubkey::Pubkey},
+    lazy_static::lazy_static,
+};
 
 pub mod clock;
 pub mod epoch_schedule;
@@ -140,9 +142,11 @@ macro_rules! impl_sysvar_get {
 
 #[cfg(test)]
 mod tests {
-    use super::*;
-    use crate::{clock::Epoch, program_error::ProgramError, pubkey::Pubkey};
-    use std::{cell::RefCell, rc::Rc};
+    use {
+        super::*,
+        crate::{clock::Epoch, program_error::ProgramError, pubkey::Pubkey},
+        std::{cell::RefCell, rc::Rc},
+    };
 
     #[repr(C)]
     #[derive(Serialize, Deserialize, Debug, Default, PartialEq)]

sdk/program/src/sysvar/recent_blockhashes.rs

@@ -1,12 +1,14 @@
 #![allow(deprecated)]
 #![allow(clippy::integer_arithmetic)]
-use crate::{
-    declare_deprecated_sysvar_id,
-    fee_calculator::FeeCalculator,
-    hash::{hash, Hash},
-    sysvar::Sysvar,
+use {
+    crate::{
+        declare_deprecated_sysvar_id,
+        fee_calculator::FeeCalculator,
+        hash::{hash, Hash},
+        sysvar::Sysvar,
+    },
+    std::{cmp::Ordering, collections::BinaryHeap, iter::FromIterator, ops::Deref},
 };
-use std::{cmp::Ordering, collections::BinaryHeap, iter::FromIterator, ops::Deref};
 
 #[deprecated(
     since = "1.9.0",
@@ -161,8 +163,7 @@ pub fn create_test_recent_blockhashes(start: usize) -> RecentBlockhashes {
 
 #[cfg(test)]
 mod tests {
-    use super::*;
-    use crate::clock::MAX_PROCESSING_AGE;
+    use {super::*, crate::clock::MAX_PROCESSING_AGE};
 
     #[test]
     #[allow(clippy::assertions_on_constants)]

sdk/program/src/sysvar/rent.rs

@@ -1,7 +1,6 @@
 //! This account contains the current cluster rent
 //!
 pub use crate::rent::Rent;
-
 use crate::{impl_sysvar_get, program_error::ProgramError, sysvar::Sysvar};
 
 crate::declare_sysvar_id!("SysvarRent111111111111111111111111111111111", Rent);

sdk/program/src/sysvar/slot_hashes.rs

@@ -3,7 +3,6 @@
 //! this account carries the Bank's most recent bank hashes for some N parents
 //!
 pub use crate::slot_hashes::SlotHashes;
-
 use crate::{account_info::AccountInfo, program_error::ProgramError, sysvar::Sysvar};
 
 crate::declare_sysvar_id!("SysvarS1otHashes111111111111111111111111111", SlotHashes);
@@ -22,8 +21,10 @@ impl Sysvar for SlotHashes {
 
 #[cfg(test)]
 mod tests {
-    use super::*;
-    use crate::{clock::Slot, hash::Hash, slot_hashes::MAX_ENTRIES};
+    use {
+        super::*,
+        crate::{clock::Slot, hash::Hash, slot_hashes::MAX_ENTRIES},
+    };
 
     #[test]
     fn test_size_of() {

sdk/program/src/sysvar/slot_history.rs

@@ -3,12 +3,11 @@
 //! this account carries a bitvector of slots present over the past
 //! epoch
 //!
+use crate::sysvar::Sysvar;
 pub use crate::{
     account_info::AccountInfo, program_error::ProgramError, slot_history::SlotHistory,
 };
 
-use crate::sysvar::Sysvar;
-
 crate::declare_sysvar_id!("SysvarS1otHistory11111111111111111111111111", SlotHistory);
 
 impl Sysvar for SlotHistory {

sdk/program/src/sysvar/stake_history.rs

@@ -3,7 +3,6 @@
 //! this account carries history about stake activations and de-activations
 //!
 pub use crate::stake_history::StakeHistory;
-
 use crate::sysvar::Sysvar;
 
 crate::declare_sysvar_id!("SysvarStakeHistory1111111111111111111111111", StakeHistory);
@@ -18,8 +17,7 @@ impl Sysvar for StakeHistory {
 
 #[cfg(test)]
 mod tests {
-    use super::*;
-    use crate::stake_history::*;
+    use {super::*, crate::stake_history::*};
 
     #[test]
     fn test_size_of() {