adapt log upload string to multiple images (fix #9018)
adapt log upload string to multiple images (fix #9018)

tobiasge/cgeo,rsudev/c-geo-opensource,tobiasge/cgeo,S-Bartfast/cgeo,matej116/cgeo,rsudev/c-geo-opensource,cgeo/cgeo,auricgoldfinger/cgeo,matej116/cgeo,S-Bartfast/cgeo,S-Bartfast/cgeo,tobiasge/cgeo,rsudev/c-geo-opensource,cgeo/cgeo,cgeo/cgeo,auricgoldfinger/cgeo,auricgoldfinger/cgeo,matej116/cgeo,cgeo/cgeo