# int setjmp(struct jmpbuf *jmp);
# void longjmp(struct jmpbuf *jmp);
#
-# Setjmp saves its stack environment in jmp
-# for later use by longjmp. It returns 0.
+# Setjmp saves its stack environment in jmp for later use by longjmp.
+# It returns 0.
#
-# Longjmp restores the environment saved by
-# the last call of setjmp. It then causes
-# execution to continue as if the call of setjmp
+# Longjmp restores the environment saved by the last call of setjmp.
+# It then causes execution to continue as if the call of setjmp
# had just returned 1.
#
-# The caller of setjmp must not itself have
-# returned in the interim. All accessible data
-# have values as of the time longjmp was called.
+# The caller of setjmp must not itself have returned in the interim.
+# All accessible data have values as of the time longjmp was called.
#
# [Description, but not code, borrowed from Plan 9.]