Avoid Tabs in screen layouts

When editing .per form files, avoid using Tab characters in sources, especially in the LAYOUT or SCREEN sections of forms.

Each kind of text/source editors can expand Tab characters differently, depending on the configuration settings. As a result, if two programmers are using different Tab expansion settings, the form layout will display in different ways.

When used in a grid area of a LAYOUT section, a Tab character will be interpreted as 8 blanks by fglform. It is legal to use Tab characters in the rest of the .per file or .4gl sources (for example, to indent the code).