rm duplicate breaking examples

BREAKING-CHANGES-EXAMPLES.md

@@ -17,7 +17,6 @@ These examples are automatically generated from unit tests.
 [changing an existing property in request body items to required is breaking](checker/checker_breaking_property_test.go?plain=1#L595)  
 [changing an existing property in request body to enum is breaking](checker/checker_breaking_property_test.go?plain=1#L168)  
 [changing an existing property in request body to required is breaking](checker/checker_breaking_property_test.go?plain=1#L320)  
-[changing an existing property in request body to required is breaking](checker/checker_breaking_property_test.go?plain=1#L579)  
 [changing an existing property in request header to enum is breaking](checker/checker_breaking_property_test.go?plain=1#L200)  
 [changing an existing property in request header to required is breaking](checker/checker_breaking_property_test.go?plain=1#L56)  
 [changing an existing property in response body to optional is breaking](checker/checker_breaking_property_test.go?plain=1#L106)  

scripts/doc_breaking_changes.sh

@@ -4,8 +4,8 @@ echo "# Examples of Breaking and Non-Breaking Changes"
 echo "These examples are automatically generated from unit tests."
 
 echo "## Examples of breaking changes"
-grep -n '// BC:' checker/*.go | grep "is breaking" | sed -n "s/\([^0-9]*\):\([0-9]*\):\/\/ BC: \(.*\)/[\3](\1?plain=1#L\2)  /p" | sort
+grep -n '// BC:' checker/*.go | grep "is breaking" | sort -u -k2 | sed -n "s/\([^0-9]*\):\([0-9]*\):\/\/ BC: \(.*\)/[\3](\1?plain=1#L\2)  /p" | sort
 
 echo ""
 echo "## Examples of non-breaking changes"
-grep -n '// BC:' checker/*.go | grep "is not breaking" | sed -n "s/\([^0-9]*\):\([0-9]*\):\/\/ BC: \(.*\)/[\3](\1?plain=1#L\2)  /p" | sort
+grep -n '// BC:' checker/*.go | grep "is not breaking" | sort -u -k2 | sed -n "s/\([^0-9]*\):\([0-9]*\):\/\/ BC: \(.*\)/[\3](\1?plain=1#L\2)  /p" | sort