fragmaster.pl;: Typo fix in pod, allows to -> allows one to.

Signed-off-by: Agustin Martin Domingo <agmartin@debian.org>

fragmaster.pl

@@ -477,7 +477,7 @@ fragmaster - Using psfrag constructs with pdflatex
 B<fragmaster> is a perl script that helps using psfrag constructs with
 B<pdflatex>.
 
-B<psfrag> is a LaTeX package which allows to replace text elements in
+B<psfrag> is a LaTeX package which allows one to replace text elements in
 included EPS graphics by arbitrary LaTeX output. Because B<psfrag>
 uses PostScript for making the replacements, in principle you can't
 use B<psfrag> with B<pdflatex> which doesn't have any interfaces to