Remove defect and warning from pixmap processing#1

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Commits on May 27, 2018

Use RStudio Code -> Reindent Lines to create consistent indentation with spaces only; this is a whitespace change only
shoffmeister
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Enable reading of files with cells comprising of two bytes (maxval = 65535)
shoffmeister
committed
Remove runtime warning In rep(cellres, length = 2) : 'x' is NULL so the result will be NULL
shoffmeister
committed