fix docs format (#2492)

* docs fix: accounts-db

* Update accounts-db/src/account_storage.rs

Co-authored-by: Brooks <[email protected]>

* Update accounts-db/src/ancient_append_vecs.rs

Co-authored-by: Brooks <[email protected]>

* remove redundant indent

* remove redundant indent

---------

Co-authored-by: Brooks <[email protected]>

accounts-db/src/account_storage.rs

@@ -43,8 +43,10 @@ impl AccountStorage {
     /// Callers to this function have 2 choices:
     /// 1. hold the account index read lock for the pubkey so that the account index entry cannot be changed prior to or during this call. (scans do this)
     /// 2. expect to be ready to start over and read the index again if this function returns None
+    ///
     /// Operations like shrinking or write cache flushing may have updated the index between when the caller read the index and called this function to
     /// load from the append vec specified in the index.
+    ///
     /// In practice, this fn will return the entry from the map in the very first lookup unless a shrink is in progress.
     /// The third lookup will only be called if a requesting thread exactly interposes itself between the 2 map manipulations in the drop of 'shrink_in_progress'.
     pub(crate) fn get_account_storage_entry(

accounts-db/src/accounts_db.rs

@@ -325,6 +325,7 @@ pub enum StoreReclaims {
 /// 3. use it (slot, append_vec, etc.)
 /// 4. re-create it sometimes
 /// 5. goto 3
+///
 /// If a caller uses it before initializing it, it will be a runtime unwrap() error, similar to an assert.
 /// That condition is an illegal use pattern and is justifiably an assertable condition.
 #[derive(Default)]
@@ -9176,6 +9177,7 @@ impl AccountsDb {
     /// 1. get the _duplicate_ accounts data len from the given pubkeys
     /// 2. get the slots that contained duplicate pubkeys
     /// 3. update rent stats
+    ///
     /// Note this should only be used when ALL entries in the accounts index are roots.
     /// returns (data len sum of all older duplicates, slots that contained duplicate pubkeys)
     fn visit_duplicate_pubkeys_during_startup(

accounts-db/src/accounts_index.rs

@@ -376,6 +376,7 @@ impl<T: IndexValue> PreAllocatedAccountMapEntry<T> {
     /// create an entry that is equivalent to this process:
     /// 1. new empty (refcount=0, slot_list={})
     /// 2. update(slot, account_info)
+    ///
     /// This code is called when the first entry [ie. (slot,account_info)] for a pubkey is inserted into the index.
     pub fn new<U: DiskIndexValue + From<T> + Into<T>>(
         slot: Slot,

accounts-db/src/ancient_append_vecs.rs

@@ -2,6 +2,7 @@
 //! an ancient append vec is:
 //! 1. a slot that is older than an epoch old
 //! 2. multiple 'slots' squashed into a single older (ie. ancient) slot for convenience and performance
+//!
 //! Otherwise, an ancient append vec is the same as any other append vec
 use {
     crate::{
@@ -717,8 +718,9 @@ impl AccountsDb {
     /// given all accounts per ancient slot, in slots that we want to combine together:
     /// 1. Look up each pubkey in the index
     /// 2. separate, by slot, into:
-    /// 2a. pubkeys with refcount = 1. This means this pubkey exists NOWHERE else in accounts db.
-    /// 2b. pubkeys with refcount > 1
+    ///    2a. pubkeys with refcount = 1. This means this pubkey exists NOWHERE else in accounts db.
+    ///    2b. pubkeys with refcount > 1
+    ///
     /// Note that the return value can contain fewer items than 'accounts_per_storage' if we find storages which won't be affected.
     /// 'accounts_per_storage' should be sorted by slot
     fn calc_accounts_to_combine<'a>(