Report source as start line, not end

config.go

@@ -89,6 +89,10 @@ parseFile:
 
 		// Found a command line; begin parsing it
 		errorf := fmt.Sprintf("error on line %d of %s: %%s", lineNo, name)
+
+		c := &Config{}
+		c.source = fmt.Sprintf("%s, line %d", name, lineNo)
+
 		line := scanner.Text()
 		parts, err := shellquote.Split(line)
 
@@ -112,16 +116,13 @@ parseFile:
 			parts, err = shellquote.Split(line)
 		}
 
-		c := &Config{}
 		flags := flag.NewFlagSet("", flag.ContinueOnError)
 		flags.SetOutput(ioutil.Discard)
 		c.registerFlags(flags)
-
 		if err := flags.Parse(parts); err != nil {
 			return nil, fmt.Errorf(errorf, err)
 		}
 		c.command = flags.Args()
-		c.source = fmt.Sprintf("%s, line %d", name, lineNo)
 		configs = append(configs, c)
 	}
 	if err := scanner.Err(); err != nil {

config_test.go

@@ -53,7 +53,7 @@ world"
 		},
 		{
 			command:         []string{"echo", "hello\nworld"},
-			source:          "test input, line 10",
+			source:          "test input, line 8",
 			regexes:         []string{"foo", "bar"},
 			globs:           []string{"a"},
 			inverseRegexes:  []string{"baz"},