Remove extra error message

PUBLISHED_FROM=8b7fcfc1bc32ff9ff38e2904ddb730c83bf9fae4

docs/c-api/dns.h/mg_dns_copy_questions.md

@@ -6,10 +6,10 @@ signature: |
   int mg_dns_copy_questions(struct mbuf *io, struct mg_dns_message *msg);
 ---
 
-Appends already encoded questions from an existing message.
+Append already encoded questions from an existing message.
 
 This is useful when generating a DNS reply message which includes
 all question records.
 
-Returns the number of appened bytes. 
+Return number of appened bytes. 
 

docs/c-api/dns.h/mg_dns_encode_record.md

@@ -8,11 +8,11 @@ signature: |
                            size_t rlen);
 ---
 
-Encodes and appends a DNS resource record to an IO buffer.
+Encode and append a DNS resource record to an IO buffer.
 
 The record metadata is taken from the `rr` parameter, while the name and data
 are taken from the parameters, encoded in the appropriate format depending on
-record type and stored in the IO buffer. The encoded values might contain
+record type, and stored in the IO buffer. The encoded values might contain
 offsets within the IO buffer. It's thus important that the IO buffer doesn't
 get trimmed while a sequence of records are encoded while preparing a DNS
 *reply.
@@ -21,5 +21,5 @@ This function doesn't update the `name` and `rdata` pointers in the `rr`
 *struct
 because they might be invalidated as soon as the IO buffer grows again.
 
-Returns the number of bytes appened or -1 in case of error. 
+Return the number of bytes appened or -1 in case of error. 
 

docs/c-api/dns.h/mg_dns_insert_header.md

@@ -7,7 +7,7 @@ signature: |
                            struct mg_dns_message *msg);
 ---
 
-Inserts a DNS header to an IO buffer.
+Insert a DNS header to an IO buffer.
 
-Returns the number of bytes inserted. 
+Return number of bytes inserted. 
 

docs/c-api/dns.h/mg_dns_parse_record_data.md

@@ -8,7 +8,7 @@ signature: |
                                size_t data_len);
 ---
 
-Parses the record data from a DNS resource record.
+Parse the record data from a DNS resource record.
 
  - A:     struct in_addr *ina
  - AAAA:  struct in6_addr *ina

docs/c-api/dns.h/mg_dns_uncompress_name.md

@@ -7,15 +7,15 @@ signature: |
                                 char *dst, int dst_len);
 ---
 
-Uncompresses a DNS compressed name.
+Uncompress a DNS compressed name.
 
-The containing DNS message is required because of the compressed encoding
+The containing dns message is required because the compressed encoding
 and reference suffixes present elsewhere in the packet.
 
-If the name is less than `dst_len` characters long, the remainder
-of `dst` is terminated with `\0` characters. Otherwise, `dst` is not
+If name is less than `dst_len` characters long, the remainder
+of `dst` is terminated with `\0' characters. Otherwise, `dst` is not
 *terminated.
 
 If `dst_len` is 0 `dst` can be NULL.
-Returns the uncompressed name length. 
+Return the uncompressed name length. 
 

docs/c-api/dns.h/mg_send_dns_query.md

@@ -7,5 +7,5 @@ signature: |
                          int query_type);
 ---
 
-Sends a DNS query to the remote end. 
+Send a DNS query to the remote end. 
 

docs/c-api/dns.h/mg_set_protocol_dns.md

@@ -6,11 +6,11 @@ signature: |
   void mg_set_protocol_dns(struct mg_connection *nc);
 ---
 
-Attaches a built-in DNS event handler to the given listening connection.
+Attach built-in DNS event handler to the given listening connection.
 
-The DNS event handler parses the incoming UDP packets, treating them as DNS
-requests. If an incoming packet gets successfully parsed by the DNS event
-handler, a user event handler will receive an `MG_DNS_REQUEST` event, with
+DNS event handler parses incoming UDP packets, treating them as DNS
+requests. If incoming packet gets successfully parsed by the DNS event
+handler, a user event handler will receive `MG_DNS_REQUEST` event, with
 `ev_data` pointing to the parsed `struct mg_dns_message`.
 
 See