Bug: `query-remote` interprets inline SPARQL queries as file paths

[remiceres]

Description

When using corese query-remote with an inline SPARQL query via -q, the command wrongly tries to open the query string as a local file, resulting in an error.

How to reproduce

Command:

corese query-remote -q 'PREFIX ex: <http://example.org/> SELECT * WHERE { ex:Alice a ex:Person }' -e http://localhost:8080/sparql

Output:

Error: Failed to open SPARQL query file: PREFIX ex: <http:/example.org/> SELECT * WHERE { ex:Alice a ex:Person }

Expected behavior

The client should treat the -q argument as an inline SPARQL query if the provided string is not a file path, and not attempt to read it as a file.