st: Adding a blank space at the end of a variable in preparation for reclink

[Matthew Krauchunas <krauchunasms@mymail.vcu.edu>]

Hello,

I am trying to clean up street addresses in preparation for a fuzzy
merge via reclink.  I want to change st --> street, ave --> avenue, rd
--> road etc.  I am running into a problem though as those characters
are normally at the end of a string.  Thus, I cannot use commands
like:

replace street_address=subinstr( street_address, " st", " street ", .)
replace street_address=subinstr( street_address, " ave", " avenue ", .)
replace street_address=subinstr( street_address, " blvd", " boulevard ", .)

Because it will change street names like "Stover" in street over.  I
am thinking of adding an extra space at the end of street_address,
running replace commands, and then removing the extra space via rtrim
command.  Does this sound like a good plan of attack?  If so, does
someone know how I can add a space the end of each of these
observations?

Thanks!
Matt
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