Applied some spellchecker suggestions

src/blob/mod.rs

@@ -50,7 +50,7 @@
 //!    Using `MaybeUninit` here can be more efficient in some cases, but is
 //!    often inconvenient, so both are provided.
 //!
-//! 2. Exact/inexact refers to to whether or not the entire buffer must be
+//! 2. Exact/inexact refers to whether or not the entire buffer must be
 //!    filled in order for the call to be considered a success.
 //!
 //!    The "exact" functions require the provided buffer be entirely filled, or
@@ -287,7 +287,7 @@ impl Blob<'_> {
     /// Close a BLOB handle.
     ///
     /// Calling `close` explicitly is not required (the BLOB will be closed
-    /// when the `Blob` is dropped), but it is available so you can get any
+    /// when the `Blob` is dropped), but it is available, so you can get any
     /// errors that occur.
     ///
     /// # Failure

src/blob/pos_io.rs

@@ -116,7 +116,7 @@ impl<'conn> Blob<'conn> {
 
         if read_len == 0 {
             // We could return `Ok(&mut [])`, but it seems confusing that the
-            // pointers don't match, so fabricate a empty slice of u8 with the
+            // pointers don't match, so fabricate an empty slice of u8 with the
             // same base pointer as `buf`.
             let empty = unsafe { from_raw_parts_mut(buf.as_mut_ptr().cast::<u8>(), 0) };
             return Ok(empty);