Update dcw-figure.sh

Author: PaulWessel

dcw-figure.sh

@@ -2,9 +2,9 @@
 # Make a single global figure with DCW-GMT
 
 ps=dcw-figure.ps
-here=`pwd`
+here=$(pwd)
 grep -v '^#' dcw-countries.txt > /tmp/$$.C.txt
-n_poly=`gmt info -Fi -o2 /tmp/$$.C.txt`
+n_poly=$(gmt info -Fi -o2 /tmp/$$.C.txt)
 gmt makecpt -T0/$n_poly/1 -Ccategorical -N > /tmp/$$.cpt
 paste /tmp/$$.cpt /tmp/$$.C.txt > /tmp/$$.txt
 grep -v '^#' dcw-states.txt | awk '{printf "%s.%s\n", $1, $2}' > /tmp/$$.S.txt