This function determines whether run-together words will be treated as
legal compounds. That is, "thecat" will be a legal compound, although
there should be a space between the two words. Changing this setting only
affects the results returned by pspell_check();
pspell_suggest() will still return suggestions.
pspell_config_runtogether() should be used on a config
before calling pspell_new_config().
Parameters
dictionary_link
flag
TRUE if run-together words should be treated as legal compounds,
FALSE otherwise.