[newlib-cygwin] fe_dfl_env.c: Fix typo in comment

[Joel Sherrill]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=1082cd8ea270ce33bbcb64d4bc96fa36351184c7

commit 1082cd8ea270ce33bbcb64d4bc96fa36351184c7
Author: Joel Sherrill <joel@rtems.org>
Date:   Wed Aug 28 12:22:41 2019 -0500

    fe_dfl_env.c: Fix typo in comment

Diff:
---
 newlib/libm/fenv/fe_dfl_env.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/newlib/libm/fenv/fe_dfl_env.c b/newlib/libm/fenv/fe_dfl_env.c
index 0606327..a52cd45 100644
--- a/newlib/libm/fenv/fe_dfl_env.c
+++ b/newlib/libm/fenv/fe_dfl_env.c
@@ -32,7 +32,7 @@
  * This is a non-functional implementation that should be overridden
  * by an architecture specific implementation in newlib/libm/machine/ARCH.
  *
- * The implementation must defined FE_DFL_ENV to point to a default
+ * The implementation must define FE_DFL_ENV to point to a default
  * environment of type fenv_t.
  */