Passing commands with "fenicsproject run <image> <command>" is broken. A command with spaces `echo hi` is passed as the first word only `echo`. This pull request fixes this with some appropriate quotation marks (now single quotes).
Passing commands with "fenicsproject run <image> <command>" is broken. A command with spaces `echo hi` is passed as the first word only `echo`. This pull request fixes this with some appropriate quotation marks (now single quotes).

FEniCS/docker