...
ts: line 1: {}: bad substitution
Breakage at i=4086 with ${long_var}
Silent breakage at i=4087 with ${long_var}
ts: line 1: {}: bad substitution
Breakage at i=4087 with ${foo-XXX}
Silent breakage at i=4088 with ${long_var}
Silent breakage at i=4088 with ${foo-XXX}
Silent breakage at i=4089 with ${long_var}
Silent breakage at i=4089 with ${foo-XXX}
Silent breakage at i=4090 with ${long_var}
Silent breakage at i=4090 with ${foo-XXX}
Silent breakage at i=4091 with ${long_var}
Silent breakage at i=4091 with ${foo-XXX}
Silent breakage at i=4092 with ${long_var}
ts: line 1: {}: bad substitution
Breakage at i=4093 with ${x}
Silent breakage at i=4093 with ${long_var}
...