IdeUtils.toRelativeAndFixSeparator returns incomplete path

.classpath file is generated with incomplete path for classpathentry when kind is "var".
Example:
<classpathentry kind="var" path="M2_REPO/gnl/ognl/2.6.9/ognl-2.6.9.jar"/>
when <classpathentry kind="var" path="M2_REPO/ognl/ognl/2.6.9/ognl-2.6.9.jar"/> is expected.

It's caused by IdeUtils.toRelativeAndFixSeparator when basepath is not equal absolutepath. Code on line 99 shifts the string 1 character to the right, corrupting the result path.