patch 9.0.0395: clang warnings for function prototypes

Problem:    Clang warnings for function prototypes.
Solution:   Remove incomplete function prototypes. (closes #11068)
diff --git a/src/version.c b/src/version.c
index df8ab27..2cf848c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -704,6 +704,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    395,
+/**/
     394,
 /**/
     393,
diff --git a/src/xxd/xxd.c b/src/xxd/xxd.c
index c9e4c46..2105a1c 100644
--- a/src/xxd/xxd.c
+++ b/src/xxd/xxd.c
@@ -134,9 +134,6 @@
 # endif
 #endif
 
-extern long int strtol();
-extern long int ftell();
-
 char version[] = "xxd 2022-01-14 by Juergen Weigert et al.";
 #ifdef WIN32
 char osver[] = " (Win32)";