send-email: lazy-load Email::Valid and make it optional

diff --git a/describe.c b/describe.c
index 4866510eafa19fbfe74e11d20e5d2d1a0a44fd4b..ff65742615cb6862d3699e4f301d671a7eadc2e2 100644 (file)
--- a/describe.c
+++ b/describe.c
@@ -11,7 +11,6 @@ static const char describe_usage[] =
 static int all = 0;    /* Default to annotated tags only */
 static int tags = 0;   /* But allow any tags if --tags is specified */
 
-#define DEFAULT_ABBREV 8 /* maybe too many */
 static int abbrev = DEFAULT_ABBREV;
 
 static int names = 0, allocs = 0;
@@ -155,7 +154,7 @@ int main(int argc, char **argv)
                        tags = 1;
                else if (!strncmp(arg, "--abbrev=", 9)) {
                        abbrev = strtoul(arg + 9, NULL, 10);
-                       if (abbrev < 4 || 40 <= abbrev)
+                       if (abbrev < MINIMUM_ABBREV || 40 <= abbrev)
                                abbrev = DEFAULT_ABBREV;
                }
                else