Fixed the error checkings in line_interp and four_pnts_interp
tree7f22a7312111fc6fe25b591607e542ba067423dd
-rw-r--r-- 6514 README.txt
drwxr-xr-x - WPS
lrwxrwxrwx 10 WRFV3 -> wrfv2_fire
drwxr-xr-x - doc
-rw-r--r-- 1372 env.csh
-rw-r--r-- 1274 env.sh
-rw-r--r-- 261 license.txt
drwxr-xr-x - other
drwxr-xr-x - standalone
lrwxrwxrwx 18 wps.csh -> doc/README_wps.txt
drwxr-xr-x - wrfv2_fire