Task #8437: Use more common .tmpl extention

.gitattributes

@@ -1614,7 +1614,7 @@ CEP/Pipeline/recipes/sip/nodes/selfcal_finalize.py eol=lf
 CEP/Pipeline/recipes/sip/nodes/setupparmdb.py eol=lf
 CEP/Pipeline/recipes/sip/nodes/setupsourcedb.py eol=lf
 CEP/Pipeline/recipes/sip/nodes/vdsmaker.py eol=lf
-CEP/Pipeline/recipes/sip/pipeline.cfg.CEP4.docker-template -text
+CEP/Pipeline/recipes/sip/pipeline.cfg.CEP4.tmpl -text
 CEP/Pipeline/recipes/sip/pipeline.cfg.in eol=lf
 CEP/Pipeline/recipes/sip/plugins/PipelineStep_addMapfile.py -text
 CEP/Pipeline/recipes/sip/plugins/PipelineStep_changeMapfile.py -text

CEP/Pipeline/recipes/sip/CMakeLists.txt

@@ -131,7 +131,7 @@ configure_file(
 # Convert configuration files through docker-template
 foreach(_file ${CMAKE_CURRENT_SOURCE_DIR}/pipeline.cfg.CEP4)
   # _src -> _dst
-  set(_src ${CMAKE_CURRENT_SOURCE_DIR}/${_file}.in_docker-template)
+  set(_src ${CMAKE_CURRENT_SOURCE_DIR}/${_file}.tmpl)
   set(_dst ${CMAKE_CURRENT_BINARY_DIR}/${_file})
 
   # add generating command, and (any) target to force the generation