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Check that switchKey isn't empty

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This commit is contained in:
Andrew Schwartzmeyer 2016-07-01 11:18:34 -07:00
parent e3fd809d42
commit 75777b42ee
1 changed files with 1 additions and 1 deletions
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2
src/Microsoft.PowerShell.ConsoleHost/host/msh/CommandLineParameterParser.cs
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@ -354,7 +354,7 @@ namespace Microsoft.PowerShell
switchKey = switchKey.Substring(1);
// chop off the second dash so we're agnostic wrt specifying - or --
if (SpecialCharacters.IsDash(switchKey[0]))
if (!String.IsNullOrEmpty(switchKey) && SpecialCharacters.IsDash(switchKey[0]))
{
switchKey = switchKey.Substring(1);
}