[PATCH] malloc: remove redundant getenv call

[Gleb Fotengauer-Malinovskiy]

* malloc/memusage.c (me): Remove redundant getenv call.
---
 malloc/memusage.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/malloc/memusage.c b/malloc/memusage.c
index a57ba8e..68903bc 100644
--- a/malloc/memusage.c
+++ b/malloc/memusage.c
@@ -265,6 +265,8 @@ me (void)
             not_me = true;
           else
             {
+              const char *str_buffer_size;
+
               /* Write the first entry.  */
               first.heap = 0;
               first.stack = 0;
@@ -276,9 +278,10 @@ me (void)
               /* Determine the buffer size.  We use the default if the
                  environment variable is not present.  */
               buffer_size = DEFAULT_BUFFER_SIZE;
-              if (getenv ("MEMUSAGE_BUFFER_SIZE") != NULL)
+              str_buffer_size = getenv ("MEMUSAGE_BUFFER_SIZE");
+              if (str_buffer_size != NULL)
                 {
-                  buffer_size = atoi (getenv ("MEMUSAGE_BUFFER_SIZE"));
+                  buffer_size = atoi (str_buffer_size);
                   if (buffer_size == 0 || buffer_size > DEFAULT_BUFFER_SIZE)
                     buffer_size = DEFAULT_BUFFER_SIZE;
                 }
-- 
glebfm