fix some typos

Signed-off-by: cui fliter <imcusg@gmail.com>

src/croc/croc.go

@@ -208,7 +208,7 @@ func New(ops Options) (c *Client, err error) {
 				panic("Could not parse given Upload Limit")
 			}
 		}
-		// Somehow 4* is neccessary
+		// Somehow 4* is necessary
 		rt = rate.Every(time.Second / (4 * time.Duration(uploadLimit)))
 		if int(uploadLimit) > minBurstSize {
 			minBurstSize = int(uploadLimit)
@@ -250,9 +250,9 @@ func isEmptyFolder(folderPath string) (bool, error) {
 }
 
 // This function retrives the important file informations
-// for every file that will be transfered
+// for every file that will be transferred
 func GetFilesInfo(fnames []string, zipfolder bool) (filesInfo []FileInfo, emptyFolders []FileInfo, totalNumberFolders int, err error) {
-	// fnames: the relativ/absolute paths of files/folders that will be transfered
+	// fnames: the relativ/absolute paths of files/folders that will be transferred
 	totalNumberFolders = 0
 	var paths []string
 	for _, fname := range fnames {
@@ -1078,7 +1078,7 @@ func (c *Client) processMessageFileInfo(m message.Message) (done bool, err error
 		}
 	}
 
-	// if no files are to be transfered, then we can end the file transfer process
+	// if no files are to be transferred, then we can end the file transfer process
 	if c.FilesToTransfer == nil {
 		c.SuccessfulTransfer = true
 		c.Step3RecipientRequestFile = true

src/croc/croc_test.go

@@ -353,7 +353,7 @@ func TestCleanUp(t *testing.T) {
 		for _, file := range []string{"README.md", "./README.md"} {
 			err = os.Remove(file)
 			if err == nil {
-				log.Debugf("Successfuly purged %s", file)
+				log.Debugf("Successfully purged %s", file)
 			} else {
 				log.Debugf("%s was already purged.", file)
 			}
@@ -361,7 +361,7 @@ func TestCleanUp(t *testing.T) {
 		for _, folder := range []string{"./testEmpty", "./link-in-folder"} {
 			err = os.RemoveAll(folder)
 			if err == nil {
-				log.Debugf("Successfuly purged %s", folder)
+				log.Debugf("Successfully purged %s", folder)
 			} else {
 				log.Debugf("%s was already purged.", folder)
 			}

src/install/default.txt

@@ -86,7 +86,7 @@ print_help() {
       Default = /usr/local/bin ('\${PREFIX}/bin' on Termux for Android)
   
   -h
-      Prints this helpfull message and exit."
+      Prints this helpful message and exit."
 
   echo "${help_header}"
   echo ""
@@ -300,10 +300,10 @@ checksum_check() {
 #---  FUNCTION  ----------------------------------------------------------------
 #          NAME:  extract_file
 #   DESCRIPTION:  Extracts a file into a location.  Attempts to determine which
-#                 tool to use by checking file extention.
+#                 tool to use by checking file extension.
 #    PARAMETERS:  $1 = file to extract
 #                 $2 = location to extract file into
-#                 $3 = extention
+#                 $3 = extension
 #       RETURNS:  Return code of the tool used to extract the file
 #                 20 = Failed to determine which tool to use
 #                 30 = Failed to find tool in path