Update checkstyle suppressions for Complex method length.
"-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
"https://checkstyle.org/dtds/suppressions_1_2.dtd">
<suppressions>
- <suppress checks="Indentation" files=".*/combinatorics/Factorial" />
- <suppress checks="ParameterNumber" files=".*/arrays/LinearCombination" />
- <suppress checks="FileLengthCheck" files=".*/Complex" />
+ <suppress checks="Indentation" files=".*/combinatorics/Factorial.java" />
+ <suppress checks="ParameterNumber" files=".*/arrays/LinearCombination.java" />
+ <suppress checks="FileLengthCheck" files=".*/Complex.java" />
+ <suppress checks="MethodLength" files=".*/Complex.java" />
<!-- Be more lenient on tests. -->
<suppress checks="Javadoc" files=".*[/\\]test[/\\].*" />
