Make sed regex portable

fsl_course/feat3/feedsRun3.py

@@ -36,7 +36,7 @@ cmd = "./cleanFSF.py {0} {1} {2} {3} {4} {5}".format(
     origFSF, newFSF, origDataDir, dataDir, outDir, origFSLDir)
 
 run(cmd)
-cmd = """sed -i 's!set feat_files(1).*!set feat_files(1) "{0}"!g' {1}""".format(newFeatDir,newFSF)
+cmd = """sed -i 's/set feat_files(1).*/set feat_files(1) "{0}"/g' {1}""".format(newFeatDir,newFSF)
 print(cmd)
 run(cmd)