Created SC2096 (markdown)

SC2096.md

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+## On most OS, shebangs can only specify a single parameter.
+
+### Problematic code:
+
+    #!/usr/bin/env bash -x
+
+### Correct code:
+
+    #!/usr/bin/env bash
+    set -x
+
+### Rationale:
+
+Most operating systems, including Linux, FreeBSD and OS X, allow only a single parameter in the shebang. In the example, `env` will be called with a single parameter -- `bash -x` -- and will therefore fail.
+
+The shebang should be rewritten to use at most one parameter. Shell options can instead be set in the body of the script.
+
+### Contraindications
+
+None.