win32: code shrink BB_CRITICAL_ERROR_DIALOGS

Rewrite the test for the value of BB_CRITICAL_ERROR_DIALOGS.

Saves 16-48 bytes.

2 files changed, 3 insertions, 2 deletions

diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index 121959376..54be59f2d 100644
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -1352,7 +1352,7 @@ int main(int argc UNUSED_PARAM, char **argv)
 
         /* Have this process handle critical errors itself:  the default
          * system-generated error dialogs may be inconvenient. */
-        change_critical_error_dialogs(getenv(BB_CRITICAL_ERROR_DIALOGS) ?: "");
+        change_critical_error_dialogs(getenv(BB_CRITICAL_ERROR_DIALOGS));
 #endif
 
 #if defined(__MINGW64_VERSION_MAJOR)
diff --git a/win32/mingw.c b/win32/mingw.c
index 6ad514ad4..467e4a33d 100644
--- a/win32/mingw.c
+++ b/win32/mingw.c
@@ -2513,5 +2513,6 @@ windows_env(void)
 void FAST_FUNC
 change_critical_error_dialogs(const char *newval)
 {
-        SetErrorMode(strcmp(newval, "1") == 0 ? 0 : SEM_FAILCRITICALERRORS);
+        SetErrorMode(newval && newval[0] == '1' && newval[1] == '\0' ?
+                                        0 : SEM_FAILCRITICALERRORS);
 }