docs: fix 9 typos in code comments and an error message

lib/care.rb

@@ -115,7 +115,7 @@ def byteslice(io, at, n_bytes)
       else # We only have one page
         # Optimize a little. If we only have one page that we need to read from
         # - which is likely going to be the case *often* we can avoid allocating
-        # a new string for the joined pages and juse use the only page
+        # a new string for the joined pages and just use the only page
         # directly as the slab. Since it might contain a `nil` and we do
         # not join (which casts nils to strings) we take care of that too
         relevant_pages.first || ''

lib/parsers/exif_parser.rb

@@ -159,7 +159,7 @@ def method_missing(*a)
       # The EXIF tags get appended to the file, so the ones coming _later_
       # are more specific and potentially overwrite the earlier ones. Walk
       # through the frames in reverse (starting with one that comes last)
-      # and if it contans the requisite EXIF property, return the value
+      # and if it contains the requisite EXIF property, return the value
       # from that tag.
       @multiple_exif_results.reverse_each do |exif_tag_frame|
         value_of = exif_tag_frame.public_send(*a)

lib/parsers/jpeg_parser.rb

@@ -46,7 +46,7 @@ def scan
     # ambiguously capture things like JPEGs embedded in ID3
     # tags of MP3s - these _are_ JPEGs but we care much
     # more about the top-level "wrapper" file, not about
-    # it's bits and bobs
+    # its bits and bobs
     return unless safe_read(@buf, 2) == JPEG_SOI_MARKER_HEAD
 
     markers_start_at = @buf.pos

lib/parsers/json_parser/validator.rb

@@ -17,7 +17,7 @@ class JSONParserError < StandardError
   end
 
   MAX_SAMPLE_SIZE = 1024
-  MAX_LITERAL_SIZE = 30 # much larger then necessary.
+  MAX_LITERAL_SIZE = 30 # much larger than necessary.
   ESCAPE_CHAR = "\\"
   WHITESPACE_CHARS = [" ", "\t", "\n", "\r"]
   ENDING_VALUE_CHARS = [",", "]", "}"]
@@ -271,7 +271,7 @@ def start_literal(c)
   end
 
   def close_literal(c)
-    raise JSONParserError, "Literal to large at #{@pos}" if @current_literal_size > MAX_LITERAL_SIZE
+    raise JSONParserError, "Literal too large at #{@pos}" if @current_literal_size > MAX_LITERAL_SIZE
 
     if whitespace?(c) || ENDING_VALUE_CHARS.include?(c)
       end_node

lib/parsers/mpeg_parser.rb

@@ -36,7 +36,7 @@ def self.likely_match?(filename)
   def self.call(io)
     return unless matches_mpeg_header?(io)
 
-    # We are looping though the stream because there can be several sequence headers and some of them are not useful.
+    # We are looping through the stream because there can be several sequence headers and some of them are not useful.
     # If we detect that the header is not useful, then we look for the next one for SEEK_FOR_SEQUENCE_HEADER_TIMES_LIMIT
     # If we reach the EOF, then the mpg is likely to be corrupted and we return nil
     MAX_BLOCK_READS.times do

lib/parsers/webp_parser.rb

@@ -28,8 +28,8 @@ def call(io)
     # 0...3   | "RIFF" (Since WebP is based on the RIFF file container format).
     # 4...7   | The size of the file in bytes - 8 bytes.
     # 8...11  | "WEBP" (To signify that this is a WebP file).
-    # 12...15 | The VB8 variant in use ("VB8 ", "VP8L" or "VB8X")
-    # 16...19 | The length of the VB8 data in bytes (i.e. The size of the file - 20 bytes).
+    # 12...15 | The VP8 variant in use ("VP8 ", "VP8L" or "VP8X")
+    # 16...19 | The length of the VP8 data in bytes (i.e. The size of the file - 20 bytes).
     riff, webp, variant = safe_read(@buf, 20).unpack('A4x4A4A4')
     return unless riff == 'RIFF' && webp == 'WEBP'
     read_data(variant)

lib/remote_io.rb

@@ -155,7 +155,7 @@ def request_range(range, uri = @uri, headers = @headers.clone, redirects = REDIR
       # We return `nil` if we tried to read past the end of the IO,
       # which satisfies the Ruby IO convention. The caller should deal with `nil` being the result of a read()
       # S3 will also handily _not_ supply us with the Content-Range of the actual resource, so we
-      # cannot hint size with this response - at lease not when working with S3
+      # cannot hint size with this response - at least not when working with S3
       nil
     when Net::HTTPServerError
       Measurometer.increment_counter('format_parser.remote_io.upstream50x_errors', 1)