fix some typos (#2511)

Author: eiei114

middleware/context_timeout.go

@@ -13,7 +13,7 @@ type ContextTimeoutConfig struct {
 	// Skipper defines a function to skip middleware.
 	Skipper Skipper
 
-	// ErrorHandler is a function when error aries in middeware execution.
+	// ErrorHandler is a function when error aries in middleware execution.
 	ErrorHandler func(err error, c echo.Context) error
 
 	// Timeout configures a timeout for the middleware, defaults to 0 for no timeout

middleware/proxy_test.go

@@ -188,7 +188,7 @@ func TestProxyRealIPHeader(t *testing.T) {
 	tests := []*struct {
 		hasRealIPheader bool
 		hasIPExtractor  bool
-		extectedXRealIP string
+		expectedXRealIP string
 	}{
 		{false, false, remoteAddrIP},
 		{false, true, extractedRealIP},
@@ -210,7 +210,7 @@ func TestProxyRealIPHeader(t *testing.T) {
 			e.IPExtractor = nil
 		}
 		e.ServeHTTP(rec, req)
-		assert.Equal(t, tt.extectedXRealIP, req.Header.Get(echo.HeaderXRealIP), "hasRealIPheader: %t / hasIPExtractor: %t", tt.hasRealIPheader, tt.hasIPExtractor)
+		assert.Equal(t, tt.expectedXRealIP, req.Header.Get(echo.HeaderXRealIP), "hasRealIPheader: %t / hasIPExtractor: %t", tt.hasRealIPheader, tt.hasIPExtractor)
 	}
 }