fix misspell

httplib/README.md

@@ -32,7 +32,7 @@ The default timeout is `60` seconds, function prototype:
 
 	SetTimeout(connectTimeout, readWriteTimeout time.Duration)
 
-Exmaple:
+Example:
 
 	// GET
 	httplib.Get("http://beego.me/").SetTimeout(100 * time.Second, 30 * time.Second)

orm/db.go

@@ -1733,7 +1733,7 @@ func (d *dbBase) TableQuote() string {
 	return "`"
 }
 
-// replace value placeholer in parametered sql string.
+// replace value placeholder in parametered sql string.
 func (d *dbBase) ReplaceMarks(query *string) {
 	// default use `?` as mark, do nothing
 }

utils/file_test.go

@@ -54,7 +54,7 @@ func TestSearchFile(t *testing.T) {
 
 	_, err = SearchFile(noExistedFile, ".")
 	if err == nil {
-		t.Errorf("err shouldnot be nil, got path: %s", SelfDir())
+		t.Errorf("err shouldnt be nil, got path: %s", SelfDir())
 	}
 }