modifying help text in the CLI

shimmingtoolbox/cli/b0shim.py

@@ -72,7 +72,8 @@ def b0shim_cli():
                    "it will be: {0,2,4}, {1,3,5}, etc.")
 @click.option('--optimizer-method', 'method', required=False, default='quad_prog', show_default=True,
               type=click.Choice(['least_squares', 'pseudo_inverse', 'quad_prog', 'gradient']),
-              help="Method used by the optimizer. LS, QP and gradient will respect the constraints,"
+              help="Method used by the optimizer. LS, QP will respect the constraints, "
+              "gradient method only accepts bounds for each channel "
               "PS will not respect the constraints")
 @click.option('--regularization-factor', 'reg_factor', type=click.FLOAT, required=False, default=0.0, show_default=True,
               help="Regularization factor for the current when optimizing. A higher coefficient will penalize higher "

shimmingtoolbox/optimizer/gradient_optimizer.py

@@ -11,8 +11,7 @@
 class GradientOpt(LsqOptimizer):
     """ Optimizer object that stores coil profiles and optimizes an unshimmed volume given a mask.
         Use optimize (args) to optimize a given mask. The algorithm uses a gradient based solver (L-BFGS-B)
-        to find the best shim. It supports bounds for each channel as well as a bound for the absolute sum
-        of the channels.
+        to find the best shim. It supports bounds for each shim channel.
     """
 
     def __init__(self, coils: List, unshimmed, affine, opt_criteria='mse', initial_guess_method='mean',