[CCOLAMD] Variable cs set but not used

[acxz]

Describe the bug
A clear and concise description of what the bug is.

CCOLAMD/Source/ccolamd.c:1563:9: warning: variable ‘cs’ set but not used [-Wunused-but-set-variable]
1563 |     Int cs ;
     |         ^~                                       

To Reproduce
Steps to reproduce the behavior.

git clone
cd CCOLAMD
make

Expected behavior
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No warnings

Screenshots
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N/A

Desktop (please complete the following information):

• OS: Arch Linux
• compiler: gcc 9.3.0
• BLAS and LAPACK library, if applicable N/A
• CCOLAMD Version: latest from master

Additional context
Add any other context about the problem here.

N/A

[DrTimothyAldenDavis]

This is not a bug, but intentional. The variable 'cs' is used when debug mode is enabled.