Remove HD from HDis* (e.g., isalpha) (#3212)

* HDisalnum
* HDisalpha
* HDiscntrl
* HDisdigit
* HDisgraph
* HDislower
* HDisprint
* HDispunct
* HDisspace
* HDisupper
* HDisxdigit

1 files changed, 1 insertions, 1 deletions

diff --git a/src/H5AC.c b/src/H5AC.c
index 491459d..a984eb8 100644
--- a/src/H5AC.c
+++ b/src/H5AC.c
@@ -144,7 +144,7 @@ H5AC_init(void)
         const char *s; /* String for environment variables */
 
         s = HDgetenv("H5_COLL_API_SANITY_CHECK");
-        if (s && HDisdigit(*s)) {
+        if (s && isdigit(*s)) {
             long env_val               = strtol(s, NULL, 0);
             H5_coll_api_sanity_check_g = (0 == env_val) ? FALSE : TRUE;
         }