[entropy.core] also exclude files ending with ".example" from .d/* dirs

conf/packages/license.accept.d/README

@@ -3,6 +3,6 @@ extending /etc/entropy/packages/license.accept content.
 User should rather edit /etc/entropy/packages/license.accept instead of
 creating files inside this directory.
 
-Files are processed in lexical order. Filenames: ".keep", "README" and
-starting with "_" are skipped and never considered.
-
+Files are processed in lexical order. Filenames: ".keep", "README" are
+skipped and never considered.
+Files ending with ".example" are never considered.

conf/packages/license.mask.d/README

@@ -3,5 +3,6 @@ extending /etc/entropy/packages/license.mask content.
 User should rather edit /etc/entropy/packages/license.mask instead of
 creating files inside this directory.
 
-Files are processed in lexical order. Filenames: ".keep", "README" and
-starting with "_" are skipped and never considered.
+Files are processed in lexical order. Filenames: ".keep", "README" are
+skipped and never considered.
+Files ending with ".example" are never considered.

conf/packages/package.mask.d/README

@@ -3,5 +3,6 @@ extending /etc/entropy/packages/package.mask content.
 User should rather edit /etc/entropy/packages/package.mask instead of
 creating files inside this directory.
 
-Files are processed in lexical order. Filenames: ".keep", "README" and
-starting with "_" are skipped and never considered.
+Files are processed in lexical order. Filenames: ".keep", "README" are
+skipped and never considered.
+Files ending with ".example" are never considered.

conf/packages/package.unmask.d/README

@@ -3,5 +3,6 @@ extending /etc/entropy/packages/package.unmask content.
 User should rather edit /etc/entropy/packages/package.unmask instead of
 creating files inside this directory.
 
-Files are processed in lexical order. Filenames: ".keep", "README" and
-starting with "_" are skipped and never considered.
+Files are processed in lexical order. Filenames: ".keep", "README" are
+skipped and never considered.
+Files ending with ".example" are never considered.

conf/packages/system.mask.d/README

@@ -3,5 +3,6 @@ extending /etc/entropy/packages/system.mask content.
 User should rather edit /etc/entropy/packages/system.mask instead of
 creating files inside this directory.
 
-Files are processed in lexical order. Filenames: ".keep", "README" and
-starting with "_" are skipped and never considered.
+Files are processed in lexical order. Filenames: ".keep", "README" are
+skipped and never considered.
+Files ending with ".example" are never considered.

conf/repositories.conf.d/README

@@ -2,8 +2,10 @@ This directory should contain distribution-provided configuration files
 extending /etc/entropy/repositories.conf content (only for "repository ="
 statements).
 
-Files are processed in lexical order. Filenames: ".keep", "README" and 
-starting with "_" are skipped and never considered. 
+Files are processed in lexical order. Filenames: ".keep", "README" are
+skipped and never considered.
+Files starting with "_" are considered belonging to disabled repositories.
+Files ending with ".example" are never considered.
 
 Files created by Entropy Client are prefixed with
 "entropy_". So, for example, for "sabayon-limbo" you will get:

lib/entropy/core/settings/base.py

@@ -360,7 +360,8 @@ class SystemSettings(Singleton, EntropyPluginStore):
             conf_files = [x for x in conf_files if \
                 os.path.isfile(x) and os.access(x, os.R_OK) \
                 and not os.path.basename(x).startswith(".keep") \
-                and os.path.basename(x) != "README"]
+                and os.path.basename(x) != "README" \
+                and not os.path.basename(x).endswith(".example")]
             # ignore files starting with _
             skipped_conf_files = [x for x in conf_files if \
                 os.path.basename(x).startswith("_")]