[Github-comments] [geany-plugins] Add new "Lineoperations" plugin (#324)

[Colomban Wendling]

> +				for(j = 0; lines[i][j] != '\0'; j++)
> +					newfile[nfposn++] = lines[i][j];
> +				k = i;
> +			}
> +
> +		newfile[nfposn] = '\0';
> +		sci_set_text(doc->editor->sci, newfile);	// set new document
> +
> +	}
> +
> +
> +	// free used memory
> +	for(i = 0; i < numlines; i++)
> +		if(lines[i]) g_free(lines[i]);
> +	if(lines)   g_free(lines);
> +	if(newfile) g_free(newfile);

`g_free()` (like `free()`) is `NULL`-safe, no need for the test

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