CKFRCH    CKFRCH    CKFRCH    CKFRCH    CKFRCH    CKFRCH    CKFRCH    
          **********************************************
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                              ******

INTEGER FUNCTION CKFRCH (STR)

Returns the index of the first non-blank, non-tab character in
a string.

INPUT
STR   - Character string

RETURN
   integer position of the first non-blank character in a string