[Issue 10601] New: std.path.setExtension leaves trailing dot if extension is empty

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=10601

           Summary: std.path.setExtension leaves trailing dot if extension
                    is empty
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
        AssignedTo: nobody at puremagic.com
        ReportedBy: hsteoh at quickfur.ath.cx


--- Comment #0 from hsteoh at quickfur.ath.cx 2013-07-10 16:42:01 PDT ---
Code:
-----snip-----
import std.path, std.stdio;
void main() {
    version(Windows)
        string ext = ".exe";
    version(Posix)
        string ext = "";
    string srcfile = "program.d";
    writeln(setExtension(srcfile, ext));
}
-----snip-----

Output on Posix is "program." (with the stray trailing dot). When an empty
extension is given, setExtension should simply strip the extension.

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