[PATCH 5/7] dlopen.3: Remove unneeded cast

[Alejandro Colomar <colomar.6.4.3@gmail.com>]

Casting `void *` to `double (*cosine)(double)` is already done
implicitly.
I had doubts about this one, but `gcc -Wall -Wextra` didn't complain
about it.
Explicitly casting can silence warnings when mistakes are made, so it's
better to remove those casts when possible.

Signed-off-by: Alejandro Colomar <colomar.6.4.3@gmail.com>
---
 man3/dlopen.3 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/man3/dlopen.3 b/man3/dlopen.3
index 8e18f70c0..2de358ea3 100644
--- a/man3/dlopen.3
+++ b/man3/dlopen.3
@@ -581,7 +581,7 @@ main(void)
 
     dlerror();    /* Clear any existing error */
 
-    cosine = (double (*)(double)) dlsym(handle, "cos");
+    cosine = dlsym(handle, "cos");
 
     /* According to the ISO C standard, casting between function
        pointers and 'void *', as done above, produces undefined results.
-- 
2.28.0