bash: style and doc fix

The patch is about job control in general instead of the builtin jobs
command

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

utils/bash/Makefile

@@ -84,7 +84,7 @@ endef
 define Package/bash/install
 	$(INSTALL_DIR) $(1)/bin
 	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/bin/bash $(1)/bin/
-	ln -sf bash $(1)/bin/rbash
+	$(LN) bash $(1)/bin/rbash
 endef
 
 

utils/bash/patches/100-fix-jobs.patch

@@ -1,4 +1,4 @@
-Fix builint command jobs
+Fix job control
 
 Patch was taken from https://git.alpinelinux.org/cgit/aports/tree/main/bash/fix-jobs.patch