Clarify comment for Odoo repository cloning in Dockerfile

Author: John75SunCity

Dockerfile

@@ -59,7 +59,7 @@ RUN pip install --no-cache-dir \
     num2words==0.5.4 \
     pillow==2.6.1
 
-# Clone Odoo 8.0 from official repo at a specific commit for reproducibility
+# Clone Odoo 8.0 from the official repository
 ARG ODOO_COMMIT=8c5e3c2c7e7c3e2e2b7e2d2e2c7e3c2e2b7e2d2e
 RUN git clone --branch 8.0 https://www.github.com/odoo/odoo /odoo \
     && cd /odoo \