Updated patch for new cURL version.

patch/curl_getenv.diff

@@ -2,7 +2,7 @@
  1 file changed, 30 insertions(+), 17 deletions(-)
 
 diff --git a/lib/getenv.c b/lib/getenv.c
-index 48ee972..fe27a24 100644
+index 49a2e50..dbf2642 100644
 --- a/lib/getenv.c
 +++ b/lib/getenv.c
 @@ -26,26 +26,23 @@
@@ -23,7 +23,7 @@ index 48ee972..fe27a24 100644
 -  return NULL;
 -#elif defined(_WIN32)
    /* This uses Windows API instead of C runtime getenv() to get the environment
-      variable since some changes aren't always visible to the latter. #4774 */
+      variable since some changes are not always visible to the latter. #4774 */
 -  char *buf = NULL;
 -  char *tmp;
 +  wchar_t *buf = NULL;
@@ -40,8 +40,8 @@ index 48ee972..fe27a24 100644
        return NULL;
 @@ -56,25 +53,41 @@ static char *GetEnv(const char *variable)
  
-     /* It's possible for rc to be 0 if the variable was found but empty.
-        Since getenv doesn't make that distinction we ignore it as well. */
+     /* it is possible for rc to be 0 if the variable was found but empty.
+        Since getenv does not make that distinction we ignore it as well. */
 -    rc = GetEnvironmentVariableA(variable, buf, bufsize);
 +    rc = GetEnvironmentVariableW(variable, buf, bufsize);
      if(!rc || rc == bufsize || rc > max) {