Fixed GetParent() on windows and unix (was incorrect for directories whose paths end in a separator).

base/src/unix/nsFileSpecUnix.cpp

@@ -178,6 +178,7 @@ void nsFileSpec::GetParent(nsFileSpec& outSpec) const
 //----------------------------------------------------------------------------------------
 {
     outSpec.mPath = mPath;
+	outSpec.mPath[outSpec.mPath.Length() - 1] = '\0'; // avoid trailing separator, if any
     char* cp = strrchr(outSpec.mPath, '/');
     if (cp++)
         *cp = '\0';

base/src/windows/nsFileSpecWin.cpp

@@ -222,6 +222,7 @@ void nsFileSpec::GetParent(nsFileSpec& outSpec) const
 //----------------------------------------------------------------------------------------
 {
 	outSpec.mPath = mPath;
+	outSpec.mPath[outSpec.mPath.Length() - 1] = '\0';; // avoid trailing separator, if any
 	char* cp = strrchr(outSpec.mPath, '\\');
 	if (cp++)
 		*cp = '\0';

xpcom/io/nsFileSpecUnix.cpp

@@ -178,6 +178,7 @@ void nsFileSpec::GetParent(nsFileSpec& outSpec) const
 //----------------------------------------------------------------------------------------
 {
     outSpec.mPath = mPath;
+	outSpec.mPath[outSpec.mPath.Length() - 1] = '\0'; // avoid trailing separator, if any
     char* cp = strrchr(outSpec.mPath, '/');
     if (cp++)
         *cp = '\0';

xpcom/io/nsFileSpecWin.cpp

@@ -222,6 +222,7 @@ void nsFileSpec::GetParent(nsFileSpec& outSpec) const
 //----------------------------------------------------------------------------------------
 {
 	outSpec.mPath = mPath;
+	outSpec.mPath[outSpec.mPath.Length() - 1] = '\0';; // avoid trailing separator, if any
 	char* cp = strrchr(outSpec.mPath, '\\');
 	if (cp++)
 		*cp = '\0';