fix misuses of a vs an

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

doc.go

@@ -1,5 +1,5 @@
 /*
-Package gin implements a HTTP web framework called gin.
+Package gin implements an HTTP web framework called gin.
 
 See https://gin-gonic.com/ for more information about gin.
 */

fs.go

@@ -17,7 +17,7 @@ type neuteredReaddirFile struct {
 	http.File
 }
 
-// Dir returns a http.FileSystem that can be used by http.FileServer(). It is used internally
+// Dir returns an http.FileSystem that can be used by http.FileServer(). It is used internally
 // in router.Static().
 // if listDirectory == true, then it works the same as http.Dir() otherwise it returns
 // a filesystem that prevents http.FileServer() to list the directory files.

gin.go

@@ -370,7 +370,7 @@ func iterate(path, method string, routes RoutesInfo, root *node) RoutesInfo {
 	return routes
 }
 
-// Run attaches the router to a http.Server and starts listening and serving HTTP requests.
+// Run attaches the router to an http.Server and starts listening and serving HTTP requests.
 // It is a shortcut for http.ListenAndServe(addr, router)
 // Note: this method will block the calling goroutine indefinitely unless an error happens.
 func (engine *Engine) Run(addr ...string) (err error) {
@@ -490,7 +490,7 @@ func parseIP(ip string) net.IP {
 	return parsedIP
 }
 
-// RunTLS attaches the router to a http.Server and starts listening and serving HTTPS (secure) requests.
+// RunTLS attaches the router to an http.Server and starts listening and serving HTTPS (secure) requests.
 // It is a shortcut for http.ListenAndServeTLS(addr, certFile, keyFile, router)
 // Note: this method will block the calling goroutine indefinitely unless an error happens.
 func (engine *Engine) RunTLS(addr, certFile, keyFile string) (err error) {
@@ -506,7 +506,7 @@ func (engine *Engine) RunTLS(addr, certFile, keyFile string) (err error) {
 	return
 }
 
-// RunUnix attaches the router to a http.Server and starts listening and serving HTTP requests
+// RunUnix attaches the router to an http.Server and starts listening and serving HTTP requests
 // through the specified unix socket (i.e. a file).
 // Note: this method will block the calling goroutine indefinitely unless an error happens.
 func (engine *Engine) RunUnix(file string) (err error) {
@@ -529,7 +529,7 @@ func (engine *Engine) RunUnix(file string) (err error) {
 	return
 }
 
-// RunFd attaches the router to a http.Server and starts listening and serving HTTP requests
+// RunFd attaches the router to an http.Server and starts listening and serving HTTP requests
 // through the specified file descriptor.
 // Note: this method will block the calling goroutine indefinitely unless an error happens.
 func (engine *Engine) RunFd(fd int) (err error) {
@@ -551,7 +551,7 @@ func (engine *Engine) RunFd(fd int) (err error) {
 	return
 }
 
-// RunListener attaches the router to a http.Server and starts listening and serving HTTP requests
+// RunListener attaches the router to an http.Server and starts listening and serving HTTP requests
 // through the specified net.Listener
 func (engine *Engine) RunListener(listener net.Listener) (err error) {
 	debugPrint("Listening and serving HTTP on listener what's bind with address@%s", listener.Addr())

ginS/gins.go

@@ -104,7 +104,7 @@ func StaticFile(relativePath, filepath string) gin.IRoutes {
 }
 
 // Static serves files from the given file system root.
-// Internally a http.FileServer is used, therefore http.NotFound is used instead
+// Internally an http.FileServer is used, therefore http.NotFound is used instead
 // of the Router's NotFound handler.
 // To use the operating system's file system implementation,
 // use :
@@ -131,28 +131,28 @@ func Routes() gin.RoutesInfo {
 	return engine().Routes()
 }
 
-// Run attaches to a http.Server and starts listening and serving HTTP requests.
+// Run attaches to an http.Server and starts listening and serving HTTP requests.
 // It is a shortcut for http.ListenAndServe(addr, router)
 // Note: this method will block the calling goroutine indefinitely unless an error happens.
 func Run(addr ...string) (err error) {
 	return engine().Run(addr...)
 }
 
-// RunTLS attaches to a http.Server and starts listening and serving HTTPS requests.
+// RunTLS attaches to an http.Server and starts listening and serving HTTPS requests.
 // It is a shortcut for http.ListenAndServeTLS(addr, certFile, keyFile, router)
 // Note: this method will block the calling goroutine indefinitely unless an error happens.
 func RunTLS(addr, certFile, keyFile string) (err error) {
 	return engine().RunTLS(addr, certFile, keyFile)
 }
 
-// RunUnix attaches to a http.Server and starts listening and serving HTTP requests
+// RunUnix attaches to an http.Server and starts listening and serving HTTP requests
 // through the specified unix socket (i.e. a file)
 // Note: this method will block the calling goroutine indefinitely unless an error happens.
 func RunUnix(file string) (err error) {
 	return engine().RunUnix(file)
 }
 
-// RunFd attaches the router to a http.Server and starts listening and serving HTTP requests
+// RunFd attaches the router to an http.Server and starts listening and serving HTTP requests
 // through the specified file descriptor.
 // Note: the method will block the calling goroutine indefinitely unless on error happens.
 func RunFd(fd int) (err error) {

routergroup.go

@@ -188,7 +188,7 @@ func (group *RouterGroup) staticFileHandler(relativePath string, handler Handler
 }
 
 // Static serves files from the given file system root.
-// Internally a http.FileServer is used, therefore http.NotFound is used instead
+// Internally an http.FileServer is used, therefore http.NotFound is used instead
 // of the Router's NotFound handler.
 // To use the operating system's file system implementation,
 // use :