++ VALGRIND_OPTS=' --leak-check=summary --show-reachable=no'
++ export VALGRIND_OPTS
++ bison -fno-caret -fcaret -o input.c input.y
input.y:1.10-2.0: error: missing '"' at end of line
 %token A "a
          ^^
input.y:4.10-5.0: error: missing "'" at end of line
 %token C '1
          ^^
input.y:14.11-15.0: error: missing "'" at end of line
 %type <f> 'a
           ^^
input.y:16.11-17.0: error: missing '"' at end of line
 %type <f> "a
           ^^
input.y:19.13-20.0: error: missing '}' at end of file
 %destructor { free ($$)
             ^^^^^^^^^^^
input.y:20.1: error: syntax error, unexpected end of file
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