I though all vowel sounds in the East Midlands were a variant of 'uh'. 
Just done some Googling, and my assumptions about Rutherglen are wrong - Ruglen is the proper Scots name of the area, and the pronunciation comes from that, rather than a skipped syllable. You do hear both versions.

Just done some Googling, and my assumptions about Rutherglen are wrong - Ruglen is the proper Scots name of the area, and the pronunciation comes from that, rather than a skipped syllable. You do hear both versions.