Only strip when starting with a num

This makes sure the `:` isn't striped if you have a workspace named:
`:something`.

1 files changed, 1 insertions, 1 deletions

diff --git a/swaybar/main.c b/swaybar/main.c
index 34c54287..3ac337d1 100644
--- a/swaybar/main.c
+++ b/swaybar/main.c
@@ -580,7 +580,7 @@ char *handle_workspace_number(bool strip_num, const char *ws_name) {
                 int len = strlen(ws_name);
                 for (i = 0; i < len; ++i) {
                         if (!('0' <= ws_name[i] && ws_name[i] <= '9')) {
-                                if (':' == ws_name[i] && i < len-1) {
+                                if (':' == ws_name[i] && i < len-1 && i > 0) {
                                         strip = true;
                                         ++i;
                                 }