| Age | Commit message (Collapse) | Author | 
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|  | Found through static analysis. | 
|  | Found through static analysis. | 
|  | - fixes a double-free error when access() failed.
- refactor code to make memory managment (alloc/free) more straightforward
   - do not bring the temporary wordexp_t struct around
   - do not postpone errors handling | 
|  | - src must be free after join_args()
- wordfree must bee used after wordexp | 
|  | if src is NULL due to a previous error we cannot use it in the command
result string.
Moreover if `src` points to `p.we_wordv[0]` we cannot use it after
`wordfree(&p)` in the command result string.
Bonus feature: If there was an error accessing the file, the string
rapresentation of the error is now included in the command result
string. | 
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