scripts/kernel_bump: Improve omitted version error
If a version string was not supplied, we currently print an empty string. We can do better here. Also by popular demand, print the usage information in case of error. Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
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		 Olliver Schinagl
					Olliver Schinagl
				
			
				
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						 Robert Marko
						Robert Marko
					
				
			
			
				
	
			
			
			 Robert Marko
						Robert Marko
					
				
			
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			| @@ -205,7 +205,9 @@ main() | |||||||
| 	target_version="${target_version:-${TARGET_VERSION:-}}" | 	target_version="${target_version:-${TARGET_VERSION:-}}" | ||||||
|  |  | ||||||
| 	if [ -z "${source_version:-}" ] || [ -z "${target_version:-}" ]; then | 	if [ -z "${source_version:-}" ] || [ -z "${target_version:-}" ]; then | ||||||
| 		e_err "Source (${source_version}) and target (${target_version}) versions need to be defined." | 		e_err "Source (${source_version:-missing source version}) and target (${target_version:-missing target version}) versions need to be defined." | ||||||
|  | 		echo | ||||||
|  | 		usage | ||||||
| 		exit 1 | 		exit 1 | ||||||
| 	fi | 	fi | ||||||
|  |  | ||||||
|   | |||||||
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