fix some typos

SCRIPTING

@@ -59,7 +59,7 @@ Setup
     thread:stop()           - stop the thread
 
   Only boolean, nil, number, and string values or tables of the same may be
-  transfered via get()/set() and thread:stop() can only be called while the
+  transferred via get()/set() and thread:stop() can only be called while the
   thread is running.
 
 Running

src/atomicvar.h

@@ -16,12 +16,12 @@
  *  pthread_mutex_t myvar_mutex;
  *  atomicSet(myvar,12345);
  *
- * If atomic primitives are availble (tested in config.h) the mutex
+ * If atomic primitives are available (tested in config.h) the mutex
  * is not used.
  *
  * Never use return value from the macros, instead use the AtomicGetIncr()
  * if you need to get the current value and increment it atomically, like
- * in the followign example:
+ * in the following example:
  *
  *  long oldvalue;
  *  atomicGetIncr(myvar,oldvalue,1);

src/http_parser.c

@@ -1739,7 +1739,7 @@ size_t http_parser_execute (http_parser *parser,
         /* Here we call the headers_complete callback. This is somewhat
          * different than other callbacks because if the user returns 1, we
          * will interpret that as saying that this message has no body. This
-         * is needed for the annoying case of recieving a response to a HEAD
+         * is needed for the annoying case of receiving a response to a HEAD
          * request.
          *
          * We'd like to use CALLBACK_NOTIFY_NOADVANCE() here but we cannot, so

src/http_parser.h

@@ -77,7 +77,7 @@ typedef struct http_parser_settings http_parser_settings;
  * chunked' headers that indicate the presence of a body.
  *
  * Returning `2` from on_headers_complete will tell parser that it should not
- * expect neither a body nor any futher responses on this connection. This is
+ * expect neither a body nor any further responses on this connection. This is
  * useful for handling responses to a CONNECT request which may not contain
  * `Upgrade` or `Connection: upgrade` headers.
  *

src/zmalloc.c

@@ -353,7 +353,7 @@ size_t zmalloc_get_private_dirty(long pid) {
 }
 
 /* Returns the size of physical memory (RAM) in bytes.
- * It looks ugly, but this is the cleanest way to achive cross platform results.
+ * It looks ugly, but this is the cleanest way to achieve cross platform results.
  * Cleaned up from:
  *
  * http://nadeausoftware.com/articles/2012/09/c_c_tip_how_get_physical_memory_size_system